I talked about the practice of turning dreams into astral projection in this article. . I think that for most people the change in consciousness is so radical as to not be recalled on waking, or in the form of a dream.
The theory that the etheric body separates slightly from the physical during sleep to absorb universal energy (chi?) makes sense to me. It also explains why some people can have out of the body experiences during the deep relaxation and pranayama exercises associated with Yoga.
Ian - Pagan Editor
"We can never obtain peace in the outer world until we make peace with ourselves."
"With realization of one's own potential and self-confidence in one's ability, one can build a better world. "