IV. Rhythm in the Bodies of Man

You will only understand this correctly if you take what I have said quite literally, namely that your ego never stays the same for the whole sixteen hours—assuming that to be the normal time for being awake—and that the ego is changing all this while. It describes part of a circle and then sinks down, passing through more changes during the night, about which the ordinary human being knows nothing. These changes become more and more unconscious until a climax is reached, and then the ego becomes slowly more conscious again. We must say, then, that in the course of twenty-four hours the human being is continuously undergoing certain changes, the outer symbol of which we can imagine as a circle, as a hand of a clock describing a circle and disappearing from time to time into the large cosmic ego.