The Human Being as Body, Soul and Spirit

GA 347 — 13 September 1922, Dornach

V. Sensation and Thoughts in Internal Organs

Gentlemen, the things we have discussed in the last few reflections are so important for understanding what I will say next that I want to at least briefly summarize these important things again.

We have seen that the human brain essentially consists of small star-shaped formations. But the rays of the stars are very wide. The extensions of these small entities intertwine and interweave, so that the brain is a kind of tissue, formed in the way I have told you.

Such little creatures, as they are in the brain, are also in the blood, with the only difference that the brain cells – as these little creatures are called – cannot live, only during the night, when sleeping, can they live a little. They cannot carry out this life. They cannot move because they are crammed together like sardines. But the blood corpuscles, the white blood corpuscles in the red blood there inside, they can move. They swim around in the whole blood, move their offshoots and only get something out of this life, die a little when the person sleeps. So sleep and wakefulness are connected with this activity or inactivity of the brain cells, and in fact of all the nerve cells and the cells that swim around as white blood cells in the blood, moving around in it.

Now I have also told you that it is precisely in an organ like the liver that one can observe how the human body changes in the course of a lifetime. Last time I told you that if, for example, the liver of an infant does not function properly – it is a kind of cognitive activity, the liver perceives and organizes digestion – so if the liver is disturbed in its perception, so that it actually perceives an incorrect digestion during infancy, this often only shows up in later life, I told you, in forty-five or fifty-year-old people. The human organism can withstand a lot. So even if the liver is already disturbed during infancy, it will endure until the age of forty-five or fifty. Then it shows internal hardening and liver diseases develop, which sometimes occur so late in humans and which are then a consequence of what was spoiled during infancy.

It is therefore best for the infant to be nourished with its mother's milk. Isn't it true that the child comes from the mother's body? So it can be understood that its entire organism, its entire body, is related to the mother. It therefore thrives best when it does not receive anything other than what comes from the mother's body, with which it is related.

However, it does happen that breast milk is not suitable due to its composition. Some human milk is bitter, some too salty. In such cases, it is best to switch to a different diet, provided by a different person.

Now the question may arise: Can't the child be fed on cow's milk right from the start? Well, it must be said that cow's milk is not very good as a food in the very earliest stages of infancy. But one need not think that a terrible sin is being committed against the human organism when one feeds the child with cow's milk that has been diluted in the appropriate way and so on. Because, of course, the milk of different creatures is different, but not so much so that one could not also introduce cow's milk instead of human milk for nutrition.

But if this nutrition is going on, it is going on in such a way that, if the child only drinks milk, nothing needs to be chewed. As a result, certain organs in the body are more active than they will be later when solid food has to be prepared. The milk is essentially so that, I might almost say, it is still alive when the child receives it. It is almost liquid life that the child absorbs.

Now you know that a very important thing for the human organism takes place in the intestines, an extraordinarily important thing. This extraordinarily important thing is that everything that enters the intestines through the stomach must be killed, and when it then enters the lymph vessels and blood through the intestinal walls, it must be revived. That is the most important thing to understand: that a person must first kill the food they take in and then revive it. The external life, taken up directly by the human being, is not usable in the human body. Man must kill everything he takes in through his own activity and then revive it. You just have to know that. Ordinary science does not know this, and therefore it does not know that man has the power of life within him. Just as he has muscles and bones and nerves within him, so he has an invigorating power, a life body within him.

The liver observes the entire digestive process, in which things are killed and then revived, in which what has been killed rises up inwardly in the new life and enters the blood, just as the eye observes external things. And just as in later life the eye can be affected by cataracts, that is, what used to be transparent becomes opaque, and hardens, so can the liver harden. And liver hardening is actually the same in the liver as cataracts are in the eye. Cataracts can also form in the liver. Then, at the end of life, a liver disease develops. At forty-five, fifty years of age, even later, liver disease develops. That is, the liver no longer looks at the inside of the person. It is really like this: with the eye you look at the outside world, with the ear you hear what sounds in the outside world, and with the liver you first look at your own digestion and what follows digestion. The liver is an inner sense organ. And only he who recognizes the liver as an inner sense organ understands what is going on inside a person. So you can compare the liver with the eye. In a sense, a person has a head inside his stomach. Only the head does not look outwards, but inwards. And that is why it is that a person works inside with an activity that he does not bring to consciousness.

But the child feels this activity. In the child it is quite different. The child still looks little to the outside world, and when it looks to the outside world, it does not know its way around. But all the more it looks inwardly in feeling. The child feels very precisely when there is something in the milk that does not belong there, that must be thrown out into the intestines so that it is discharged. And if something is wrong with the milk, the liver takes on the disease for the whole of later life.

Now, you can imagine that the eye, when it looks outwards, belongs to the brain. Simply looking at the outside world would not serve us as humans. We would stare at the outside world, stare all around, but we would not be able to think about the outside world. It would be just like a panorama, and we would sit in front of it with an empty head. We think with our brain, and think about what is outside in the world with our brain.

Yes, but, gentlemen, if the liver is a kind of inner eye that scans all the intestinal activity, then the liver must also have a kind of brain, just as the eye has the brain at its disposal. You see, the liver can indeed see everything that is going on in the stomach, how the entire chyme is mixed with pepsin in the stomach. When the chyme enters the intestine through the so-called pylorus of the stomach, the liver can then see how the chyme moves forward in the intestine, how it secretes more and more usable parts through the walls of the intestine, how the usable parts then pass into the lymph vessels and from these vessels then into the blood. But from there on, the liver can do nothing more. Just as little as the eye can think, so little can the liver do the further activity. There must come to the liver another organ, as to the eye the brain must come.

And just as you have the liver within you, which is constantly observing your digestive activity, so you also have a thinking activity within you, of which you are completely unaware in your ordinary life. This thinking activity – that is, you are not aware of the thinking activity, but you already know about the organ – this thinking activity is added to the liver's perception and comprehension activity just as the brain adds thinking to the eye's perception, and you have it, as strange as it may seem to you, through the kidneys, the renal system.

The kidney system, which otherwise only secretes urine for ordinary consciousness, is not at all such a base organ as one always looks at it, but the kidney, which otherwise just secretes the water, is the organ that belongs to the liver and performs an inner activity, an inner thinking. The kidneys are also connected with the other thinking in the brain, so that if the brain activity is not in order, the activity of the kidneys is also not in order. Let us suppose that we begin to cause the brain to work improperly in childhood. It does not work properly if, for example, we cause the child to study too much - I already hinted at this last time - to let it work with mere memory too much, if we make it learn too much by heart. The child needs to learn things by heart in order to develop a flexible brain, but if we make it learn too much by heart, then the brain has to exert itself so much that it carries out too much activity, which causes hardening in the brain. This causes brain hardening if we make the child learn too much by heart. But if hardening occurs in the brain, it is possible that the brain will not work properly throughout the whole life. It is just too hard.

But the brain is connected to the kidneys. And because the brain is connected to the kidneys, the kidneys no longer work properly either. A person can endure a lot; it only shows up later: the whole body no longer works properly, the kidneys no longer work properly either, and you find sugar in the urine that should actually be processed. But the body has become too weak to use the sugar because the brain is not working properly. It leaves the sugar in the urine. The body is not in order, the person suffers from diabetes.

You see, I want to make this very clear to you, that something depends on the mental activity, for example, on how much learning by heart there is, and that is how the person turns out later. Have you not heard that diabetes is particularly common among rich people? They can take extraordinary care of their children, materially and physically, but they do not know that they should also take care of a proper school teacher who does not make the child learn so much by rote. They think: Well, the state takes care of that, everything is fine, there is no need to worry about it. The child learns too much by rote, and later becomes a diabetic! You cannot make a person healthy through material education alone, through what you teach a person through food. You have to take into account what is in the soul. And you see, you gradually begin to feel that the soul is something important, that the body is not the only thing about a person, because the body can be ruined by the soul. No matter how well we eat as children and no matter how strong we are after eating the food that chemists study in the laboratory, if the soul is not in order, if the soul is not taken into account, the human organism will still break down. Through a true science, not today's purely material science, we gradually learn to tune into what is already present in a person before conception and what continues to be present after death, because we get to know what our soul is. Especially in such matters, we must take this into account.

But now think, where does it come from that people today do not want to know anything about what I have told you? Well, you can approach people with a so-called education today; it is “uneducated” to talk about the liver or even about the kidneys. It is something uneducated. Where does it come from that it is something “uneducated”?

You see, the ancient Jews in Hebrew antiquity – and after all, our Old Testament comes from the Jews – the ancient Jews did not yet regard speaking of the kidney as something so terribly uneducated. For example, the Jews did not say that when a person had tormenting dreams at night – you can read that in the Old Testament; today's Jews are educated enough not to repeat what is in the Old Testament when they are in decent company, but it is in the Old Testament – they did not say that when a person had evil dreams at night: My soul is tormented. Yes, gentlemen, it is easy to say that if you have no conception of the soul; then “soul” is just a word – it means nothing. But the Old Testament, speaking from the wisdom that humanity once had, said when someone had bad dreams at night: “Your kidneys are troubling you.” What was already known in the Old Testament is now being rediscovered through more recent anthroposophical research: kidney activity is not working properly if you have bad dreams.

Then came the Middle Ages, and in the Middle Ages, little by little, what is still valid today gradually emerged. For in the Middle Ages there was a tendency to praise everything that cannot be perceived, that is somehow outside the world. After all, the head is left free in the human being; everything else is covered up. One may only speak of that which is free. Of course, some ladies, especially in the educated world, walk around today leaving so much exposed that one is far from allowed to talk about what is exposed. But anyway, what is then inside the person has become something that, for a certain kind of Christianity in the Middle Ages — in England it was later called Puritanism — one is not allowed to talk about. One is not allowed to talk about it in terms of mere material sensuality. It is not spiritual, one must not speak of it. And so, little by little, they lost their whole spirit. Of course, if one speaks only of the spirit where the head is, one cannot grasp it so easily. But if one grasps it where it is seated in the whole human body, one can grasp it well.

And you see, the kidneys are then what thinks in addition to the perceptive activity of the liver. The liver observes, the kidneys think; and they can think the activity of the heart and can think everything that the liver has not observed. The liver can still observe the entire digestive activity and how the digestive juices enter the blood. But then, when it begins to circulate in the blood, thought is needed. And that is done by the kidneys. So that man actually has something like a second man within him.

Now, gentlemen, you cannot possibly believe that the kidneys you cut out of dead bodies and then place on the dissecting table – or, if they are beef kidneys, you even eat it; you can easily look at it before you eat or cook it – but you will not believe that the piece of meat with all the properties that the anatomist is talking about, that piece of meat thinks! Of course it does not think, but what is inside the kidney of the soul thinks. That is why it is as I told you last time: The material that is in the kidney, for example, let's say in childhood, is completely replaced after seven or eight years. There is a different substance in it. Just as your fingernails are no longer the same after seven or eight years, but you have always cut off the front part, so everything that was in the kidney and liver has been replaced by you.

Yes, you have to ask: if the substance that was in the liver seven years ago is no longer there, and yet the liver can still become ill after decades due to what was neglected in it as an infant, then there is an activity that cannot be seen, because the substance does not reproduce. Life continues from infancy to the age of forty-five. It is not the material that can become diseased – it is excreted – but the invisible activity that is there and that goes on throughout a person's entire life is what continues. There you see how the human body is actually a complicated, an extremely complicated being.

Now I would like to tell you something else. I said: the ancient Jews still knew something about how kidney activity is involved in such dull, dark thinking, as dreams are at night. But at night it is the case that our ideas have gone; then one perceives what the kidneys are thinking. During the day, our heads are full of thoughts that come from outside. Just as when there is a strong light and a weak candlelight, you see the strong light, and the weak candlelight disappears next to it. It is the same with a person when he is awake: his head is full of ideas that come from the outside world, and what is going on down there in the kidneys is just the small light; he does not perceive it. When the head stops thinking, then it still perceives as dreams what the kidneys think and what the liver looks at internally. That is why dreams look the way you sometimes see them.

Imagine there is something wrong with the intestines; the liver sees that. During the day you don't pay attention to it because there are stronger ideas. But at night when falling asleep or waking up, you notice how the liver perceives the intestinal disorder. But the liver is not as smart and neither are the kidneys as smart as the human mind. Because they are not so clever, they cannot immediately say: “These are the intestines that I see.” They create an image out of it, and the person dreams instead of seeing reality. If the liver saw reality, it would see the intestines burning. But it does not see reality, it creates an image out of it. It sees flickering snakes. When a person dreams of flickering snakes, which he does very often, then the liver is looking at the intestines, and that is why they appear to it as snakes. Sometimes the head is just like the liver and the kidneys. If a person sees something, for example, a bent piece of wood nearby and in an area where snakes could be, the head can even mistake this bent piece of wood for a snake when it is five steps away. Thus, the inner vision and thinking of the liver and kidneys considers the winding intestines to be snakes.

Sometimes you dream of a stove that is heated up. You wake up and have heart palpitations. What happened? Yes, the kidney thinks about the stronger heart palpitations, but it imagines it as if it were a stove that is heated up, and you dream of a boiling stove. That is what the kidney thinks about your heart activity.

So there inside the human stomach – although it is again 'not formed', to speak of it – sits a soul being. The soul is a little mouse that slips into the human body somewhere and sits inside. Isn't it true that people used to do that? They thought: where is the seat of the soul? But you don't know anything about the soul if you ask where the soul is located. It is just as much in the 'ear lobe' as in the big toe, only the soul needs organs through which it thinks, imagines and creates images. And in such an activity, which you know very well, it does it through the head, and in the way I have described to you, where the inner being is looked at, it does it through the liver and kidneys. You can see the soul at work in the human body everywhere. And you have to see that.

This, however, requires a science that does not simply cut open dead human bodies, lay them on the dissecting table, cut out organs and look at them materially; it requires that one really makes one's whole inner soul life visible in thinking and in everything a little more active than the people who just look. Of course it is more comfortable to cut open human bodies, to cut out the liver and then write down what you find there. There is no need to exert much mental effort. That's what the eyes are for, and it only takes a little thought to cut the liver in all directions, make small pieces, put them under the microscope, and so on. It's an easy science. But almost all science today is an easy science. We have to activate our inner thinking much more, and above all we must not believe that from the moment we put the person on the dissecting table, cut out his organs and describe them, we can get to know the human being. Because we are just cutting out the liver of a fifty-year-old woman or man and, when we look at it, we don't know what has already happened in the infant. We need a whole science. That is precisely what a real science must strive for. That is the endeavor of anthroposophy, to have a real science. And this real science does not just lead to the physical, but, as I have shown you, to the soul and to the spiritual.

I told you last time that the blue blood vessels, that is, the veins in which the blood flows not as red blood but as blue blood, that is, blood containing carbon dioxide, enter the liver. This is not the case in any of the other organs. In this respect, the liver is a quite extraordinary organ. It takes up blue blood vessels and almost makes the blue blood disappear into itself (see illustration $. 70).

This is something extraordinarily significant and important. So when we imagine the liver, the usual red veins also go into the liver. The blue veins go out of the liver. But in addition, a special blue vein, the portal vein, which contains a lot of carbon dioxide, goes into the liver (see drawing on plate 4). Now, the liver absorbs this and does not let it out again, which then enters the liver as carbonic acid through this special blue blood.

Yes, that's right. When conventional science has cut out the liver, it sees this so-called portal vein, but doesn't think much more about it. But anyone who has been able to arrive at a real science does make comparisons.

Now there are still organs in the human body that have something very similar, and that is the eyes. With the eyes, something is very small, only gently hinted at, but nevertheless, it is also the case with the eye that not all blood, all blue blood, that goes into the eye, goes back again. Veins go in, red veins go in, blue ones go out. But not all the blue blood that enters the eye goes back again, but is distributed just as it is in the liver. Only, in the liver it is strong, in the eye it is very weak.

Isn't that proof that I can compare the liver with the eye? Of course, one can point out everything that is in the human organism. That is how one comes to the conclusion that the liver is an inner eye.

But the eye is directed outwards. It peers outwards and consumes the blue blood it receives in order to look outwards. The liver consumes it inwards. Therefore, it makes the blue blood disappear inside and uses it for something else. Only sometimes, you see, the eye also gets into the habit of using its blue veins a little. That is when a person becomes sad, when he cries; then the bitter-tasting tear fluid wells up in the eyes, in the lacrimal glands. This comes from the little bit of blue blood that remains in the eye. When this is particularly stimulated by sadness, the tears come out as a secretion.

But in the liver, this story is always present! The liver is always sad because the human organism, as it is in life on earth, can make you sad when you look at it from the inside, because it is predisposed to the highest, but it just doesn't look that great. The liver is always sad. That is why it always secretes a bitter substance, bile. What the eye does with tears, the liver does for the whole organism in the secretion of bile. Only – the tear flows outwards and the tears are gone as soon as they are out of the eye; but the bile throughout the human organism does not disappear, because the liver does not look outwards but inwards. Here, the function of looking back is reduced, and the secretion, which can be compared to the secretion of tears, comes to the fore.

Yes, but, gentlemen, if what I am telling you is really true, then it must show up even more clearly in another area. It must be shown that those beings on earth who live more in their inner life, who live more in their inner thinking activity, that the animals do not think less than man, that the animals think more - thus less in their heads than man, they have an imperfect brain. But then they must observe more the liver life and the kidney life, must look more inward with the liver and think more inwardly with the kidneys. This is also the case with animals. There is external proof of this. Our human eyes are so constructed that the blue blood that enters them is actually very little, so little that today's science does not even talk about it. It used to talk about it. But in the case of animals, which live more in their inner being, the eyes do not just look, but the eyes think as well.

If one could say that the eyes are a kind of liver, one could now say that in animals the eye is much more liver than in humans. In humans, the eye has become more perfect and less liver-like. This can be seen in the eye. In the animal, it can be clearly demonstrated that there is not only what is found in humans: a glassy, watery body, then the lens of the eye, again a glassy, watery body – but in certain animals, the blood vessels go into the eye and form such a body in the eye (see drawing). The blood vessels go right into this vitreous humor, forming a body inside it called the fan, the eye fan. In these animals, it is... (gap in the transcript). Why? Because in these animals, the eye is even more liver. And just as the portal vein goes into the liver, so this fan goes into the eye. That is why it is so in animals: When the animal looks at something, the eye is already thinking; in humans, it only looks, and it thinks with the brain. In animals, the brain is small and imperfect. It does not think so much with the brain, but thinks in the eye, and it can think in the eye because it has this sickle-shaped projection, so that it can use the used blood, the carbonic acid blood, in the eye.

I can tell you something that will not really surprise you. You will not assume that the vulture, high up in the air with its damn small brain, would succeed in making the very clever decision to fall down right where the lamb is sitting! If the vulture's brain were important, it could starve to death. But the vulture has a thinking process in his eye that is only a continuation of his kidney thinking, and so he makes his decision and shoots down and catches the lamb. The vulture does not do it by saying to himself: There is a lamb down there, now I have to get into position; now I will fall down just right in that line, I will come across the lamb. — A brain would make this consideration. If there were a man up there, he would think about it; he would just not be able to carry it out. But with the vulture, even the eye thinks. The soul is already in the eye. He is not even aware of this, but he still thinks.

You see, I told you, the old Jew, who understood his Old Testament, knew what it means: God has plagued you by your kidneys in the night. - With that he wanted to express the reality of what appears to the soul as mere dreams. God has tormented you through your kidneys in the night - so he said, because he knew: There is not only a person who looks out through his eyes into the outer world, but there is a person who thinks through his kidneys and looks through his liver into the inner self.

And the ancient Romans knew that too. They knew that there are actually two people: the one who looks out through his eyes, and then the other, who has his liver in his stomach and looks into his own interior. Now it is the case that, with the liver – you can see this from the distribution of the blue veins – if you want to use the expression, you have to say that it actually looks backwards. This is why a person is so unaware of their insides; just as you are unaware of what is behind you, the liver is not consciously aware of what it is actually looking at. The ancient Romans knew this. They just expressed it in such a way that it is not immediately obvious. They imagined: a person has a head at the front, and in the lower body he has another head; but this is only an indistinct head that looks backwards. And then they took the two heads and put them together, forming something like this (see drawing): a head with two faces, one looking backwards and the other forwards. You can still find such statues today if you go to Italy. They are called Janus heads.

You see, the travelers who have the money go through Italy with their Baedeker, also look at these Janus heads, look in the Baedeker – but there is nothing sensible in it. Because, isn't it true, you have to ask yourself: how did these old Roman guys come to develop such a head? They weren't actually so stupid as to believe that if you travel across the sea somewhere, you'll find people with two heads on the ground. But the traveler, who is not educated by his eyes, must imagine something like that when he sees that the Romans have developed a head with two faces, one facing backwards and one facing forwards.

Yes, well, the Romans knew something through a certain natural thinking that all of later humanity did not know, and we will come to that now, come to it independently. So that we can now know again that the Romans were not stupid, but were clever! Janus-head means January. Why did they set it at the beginning of the year? That is also a special secret.

Yes, gentlemen, once you have come so far as to realize that the soul works not only in the head but also in the liver and kidneys, then you can also observe how it differs throughout the year. In summer, the warm season, the liver works very little. The liver and kidneys enter into a kind of sleep-like state of soul, performing only their external bodily functions, because the human being is more dependent on the warmth of the outside world. It begins to be more inactive within. The entire digestive system is quieter in midsummer than in winter; but in winter, this digestive system begins to be very mental and emotional. And when the Christmas season comes, the New Year season, when January comes and begins, the liver and kidneys are most active in the soul.

The Romans knew this too. That is why they called the people with the two faces the January people. When you independently come back to what is actually there, you no longer need to stare at things, but can understand them again. Today, people only stare at them because today's science is no longer there. You see, anthroposophy is really not impractical. It can explain not only everything that is human, but even everything that is historical; for example, it can explain why the Romans made these Janus faces! Actually, I am not saying this out of vanity. In fact, if people are to understand the world, they need to consult an anthroposophist in the guidebook, otherwise they will actually go through the world half asleep, just gawking at everything and unable to reflect.

Yes, gentlemen, as you can see, we are really serious when we say that we have to start with the physical in order to reach the soul. Well, I will continue speaking about the soul next Saturday. Then you can also think about what questions you want to ask. But you will have seen that it is really no laughing matter how one wants to get from the physical to the soul, but that it is a very serious science.