Thirteenth Lecture

If one now, through spiritual science, engages with these two aspects of the dual nature – one could specify further aspects, but that is not the point today – then one can already read something tremendously significant from the mere shape of the human being, if one really engages with it. From a spiritual scientific point of view, it can be seen that this human head undergoes a development from birth through physical life on earth, which now differs from the development of the rest of the organism just as the head already differs in form from the rest of the organism. It is very interesting to observe that this head develops three to four times faster than the rest of the organism. If you look at the rest of the organism, you can call it by a common name, in that it is mainly organized by the heart, so that you then get an opposite between the head organism and the heart organism. This heart organism really develops three to four times slower than the head organism. If we were only heads, we would be old people by the age of twenty-seven or twenty-eight, getting ready to die because the head develops so quickly. The rest of the organism develops four times more slowly, and so we live well into our seventies and eighties. But that does not change the fact that we actually have a head development and a heart development, that we carry these two natures within us. Our head development is also usually fully completed by the age of twenty-eight; the head no longer develops. What then develops is the rest of the organism. It also sends the developmental rays into the head of its own accord. If you are able to observe the shape, the characteristic development of the shape, you could come across confirmation even from external things, even if you cannot come across the thing itself. However, you have to have spiritual knowledge to come across this. But look, who has not looked at a small child and said to themselves when they see it again later: This child only later became so similar to so and so. — This is connected with the fact that the forces of heredity are actually in the rest of the organism. The head is formed entirely out of the cosmos; and only when the forces of heredity work out of the rest of the organism, which happens more slowly, does the physiognomy of the head also resemble the rest of the organism. This is just one example of how external facts can confirm what spiritual science finds. It is important to note that the head develops much faster than the rest of the organism.