It is the fruit of the tree of the knowledge of good and evil, which means that it brings awareness of the opposites, the specific feature of consciousness. Thus, according to this myth… consciousness is the original sin, the original hybris, and the root cause of all evil in human nature.
Edinger establishes the depth-psychological axiom that the Tree of Knowledge is the mythic vehicle for the emergence of consciousness, equating its fruit with the awareness of opposites that defines ego-formation.
, Ego and Archetype: Individuation and the Religious Function of the Psyche, 1972thesis