The hermaphrodite means nothing but a Jungian of the strongest and most striking opposites… if the hermaphrodite were only a product of primitive non-differentiation, we would have to expect that it would soon be eliminated with increasing civilization. This is by no means the case.
Jung and Kerényi argue that hermaphroditism is not a relic of primitive undifferentiation but a persistent symbol of the union of opposites operative across the highest levels of culture, including Gnosticism and medieval natural philosophy.
, Essays on a Science of Mythology: The Myth of the Divine Child and the Mysteries of Eleusis, 1949thesis