VII. Inner Processes in the Human Organism. Sense-Perception, Breathing, Sleeping, Waking, Memory

It can truly be said that one who begins to be aware of this process of the return of the astral body into the physical and etheric bodies experiences spiritual storms and percussions. These spiritual storms show that the astral body is diving down into the physical and etheric bodies but these bodies are not like the descriptions given by anatomists and physiologists, for they too belong to a spiritual world. Both the so-called physical body and the somewhat nebulous etheric body are rooted in a spiritual world. In its real nature the physical body reveals itself as something quite different from the material image presented to the eye or to ordinary science.