I. Soul and Spirit in the Human Physical Constitution

This is how we must think of the field of consciousness. We should not speak of having only the ordinary waking consciousness any more than we should speak of having only the familiar solid organism. We must speak to the effect that the solid organism is something that exists within a clearly demarcated space, so that if we think in an entirely materialistic way, we shall take this to be the human organism itself. We must remember that ordinary consciousness is actually present, that its ideas and mental pictures come to us in definite outlines. But we should neither think that we have the solid body only, nor that we have this day-consciousness only. For the solid body is permeated by the fluid body which has an inwardly fluctuating organization, and again the clear day-consciousness is permeated by the dream-consciousness, yielding pictures which have no sharp outlines but fluctuating outlines, for consciousness here itself becomes 'fluid' in a certain sense. And as well as the fluid organism we have the air organism, which during the sleeping state is sustained by something that is not ourselves, and hence is not entirely, but only partially and transiently, connected with our own life of soul—namely in waking life only; nevertheless we have it within us as an actual organism.