XII. Christ, Ahriman and Lucifer

Now the thing is that we are born again and again from the blood, every day, every hour. Blood always signifies renewal. If we only had blood in us, we would be like beings that are constantly growing, getting bigger, fresh and so on. But, you see, gentlemen, if we were only nerves, if we were only made of nerves, we would be constantly exhausted, tired, we would actually be constantly dying. So we have two opposing principles in us, the nervous system, which makes us continually grow old, continually at the mercy of death, and the blood system, which is connected to the nutritional system, which makes us continually grow young and so forth.