How else could it have occurred to man to divide the cosmos, on the analogy of day and night, summer and winter, into a bright day-world and a dark night-world peopled with fabulous monsters, unless he had the prototype of such a division in himself, in the polarity between the conscious and the invisible and unknowable unconscious?
Carl Gustav Jung (1981). “The Archetypes and the Collective Unconscious”, p.101, Princeton University Press
