The spirit of evil is fear, negation, the adversary who opposes life in its struggle for eternal duration and thwarts every great deed, who infuses into the body the poison of weakness and age through the treacherous bite of the serpent; he is the spirit of regression, who threatens us with bondage to the mother and with dissolution and extinction in the unconscious. (Cf. fig. 35 and pi. lxii.)
For the hero, fear is a challenge and a task, because only boldness can deliver from fear.
And if the risk is not taken, the meaning of life is somehow violated, and the whole future is condemned to hopeless staleness, to a drab
grey lit only by will-o’-the-wisps. ~Carl Jung, CW 5, Para 551