In Jungian psychology, the deepest layer of the unconscious mind that is shared by all humanity, containing universal patterns, themes, and symbols (archetypes) that appear across cultures and throughout history. It represents the inherited psychological foundation common to all humans.
Coined by Carl Jung in the early 20th century, combining 'collective' (shared by all) with 'unconscious' (below conscious awareness). Jung distinguished this from the personal unconscious, proposing that some mental content is not individually acquired but inherited from our species' psychological evolution.
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