For the mythological hero is the champion not of things become but of things becoming; the dragon to be slain by him is precisely the monster of the status quo: Holdfast, the keeper of the past. From obscurity the hero emerges, but the enemy is great and conspicuous in the seat of power; he is enemy, dragon, tyrant, because he turns to his own advantage the authority of his position. He is Holdfast not because he keeps the past but because he keeps.
The tyrant is proud, and therein resides his doom. He is proud because he thinks of his strength as his own; thus he is in the clown role, as a mistaker of shadow for substance; it is his destiny to be tricked. The mythological hero, reappearing from the darkness that is the source of the shapes of the day, brings a knowledge of the secret of the tyrant's doom. With a gesture as simple as the pressing of a button, he annihilates the impressive configuration. The hero-deed is a continuous shattering of the crystallizations of the moment. The cycle rolls: mythology focuses on the growing-point. Transformation, fluidity, not stubborn ponderosity, is the characteristic of the living God. The great figure of the moment exists only to be broken, cut into chunks, and scattered abroad. Briefly: the ogre-tyrant is the champion of the prodigious fact, the hero the champion of creative life.
—Joseph Campbell, The Hero with a Thousand Faces, p. 311