Everywhere, no matter what the sphere of interest (whether religious, political, or personal), the really creative acts are represented as those deriving from some sort of dying to the world; and what happens in the interval of the hero's nonentity, so that he comes back as one reborn, made great and filled with creative power, mankind is also unanimous in declaring. We shall have only to follow, therefore, a multitude of heroic figures through the classic stages of the universal adventure in order to see again what has always been revealed.... the singleness of the human spirit in its aspirations, powers, vicissitudes, and wisdom.

Chapter 3 - The Hero with a Thousand Faces (1949)