Jung on dreams, from "Dream Analysis" in Modern Man in Search of a Soul
"It is only through comparative studies in mythology, folk-lore, religion, and language that we can determine these symbols in a scientific way. The evolutionary stages through which the human psyche has passed are more clearly discernible in the dream than in consciousness. The dream speaks in images and gives expression to instincts that are derived from the most primitive levels of nature. Consciousness all too easily departs from the law of nature, but it can be brought again into harmony with the latter by the assimilation of unconscious contents. By fostering this process, [one comes to] the rediscovery of the law of one's own being" (p. 26).
You can find this and other excellent quotes and info on "The Symbolic Life" on the Jung.org page
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