" This fear of life is not just an imaginary bogy, but a very real panic, which seems disproportionate only because its real source is unconscious and therefore projected: the young, growing part of the personality, if prevented from living or kept in check, generates fear and changes into fear. The fear seems to come from the mother, but actually it is the deadly fear of the instinctive, unconscious, inner man who is cut off from life by the continual shrinking back from reality. If the mother is felt as the obstacle, she then becomes the vengeful pursuer. Naturally it is not the real mother, although she too may seriously injure her child by the morbid tenderness with which she pursues it into adult life, thus prolonging the infantile attitude beyond the proper time. It is rather the mother-imago that has turned into a lamia.63 (Cf. pls. XXXVIIIa, XLVIII.) The mother-imago, however, represents the unconscious, and it is as much a vital necessity for the unconscious to be joined to the conscious as it is for the latter not to lose contact with the unconscious. Nothing endangers this connection more in a man than a successful life; it makes him forget his dependence on the unconscious. The case of Gilgamesh is instructive in this respect: he was so successful that the gods, the representatives of the unconscious, saw themselves compelled to deliberate how they could best bring about his downfall. Their efforts were unavailing at first, but when the hero had won the herb of immortality (cf. pl. XIX) and was almost at his goal, a serpent stole the elixir of life from him while he slept. "
― C.G. Jung , Symbols of Transformation (Collected Works 5)