51. On Planetary Development

That which animates the human being remains united with the physical body even during sleep. But that which dwells in the body when we are awake, but is separated from it when we are asleep, must be called our spirit-like soul. Thus, the soul can be seen to consist of two parts: one that is always united with the etheric body, and the other that is only united with it when we are consciously awake. During sleep, the ego leaves the body with the latter.