Carl Jung proposed the "Collective Unconscious," a reservoir of universal symbols shared by all humans. Dimensions of the psyche such as the Shadow (rejected self), the Anima/Animus (inner gender polarities), and the Wise Old Man appear in dreams to guide "individuation." Jung saw dreams as constructive messages for psychic integration. By recognizing these archetypes, individuals can transcend personal trauma and connect with the mythological layer of human experience.