The Spirits' Book
Book Two - The Spirit World
Chapter VIII - Emancipation of the Soul
Sleep and Dreams
406. When we see living persons, whom we know quite well, doing things in dreams that they would never dare do in reality, is it a mere effect of the imagination?
“That they would never dare? How do you know? Their spirit may visit yours, as yours may visit theirs, and you do not always know what they may be thinking. Besides, in dreams you often apply to individuals you know, and according to your own desires, what took place, or is taking place, in other existences.”