“In a fashion dreams allow for a curious mixture of learning processes, while at the same time serving to introduce surprising developments. That is, dreams promote the conservation of knowledge. They are an aid in the development of skills. They conserve available information by weaving it through the other structures of your experience.
“At the same time, dreams have their startling qualities, promoting the insertion of unexpected developments, in which case they appear to deal with the breaking down of conserving principles. In this fashion, they also mirror your more exterior behavior, conserving what you know already, and yet introducing new patterns, new spontaneous orders that would sometimes seem to run against conservative issues. They reinforce the past, for example, when you dream of past situations. They also seem to undermine the integrity of the past by showing it to you in an unfamiliar light, mixing it with present and future tints.”
(Dreams, “Evolution” and Value Fulfillment Vol 2, Session 936)