Fire was Prometheus' gift to those poor hapless incompetent humans. Prometheus may have took pity on wretched creatures huddled together - united in a common hope for another day. He may have loathed the sight of those brutes who killed each other out of panic - fearing that at any moment their fellows would betray them all the same. For these brutes, this common fear divided them. Fire allowed the timid to gather with greater comfort and permitted the brutes to cut a larger swath of destruction. Prometheus, having deified the gods, was condemned to eternity bound to a rock, having his insides pecked away again and again by scavenging fowl. From that rock he saw what man did with his gift.
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Kant's What is Enlightenment - fire = enlightenment; a tenuous gift, renewed through practice, regenerated by error, changing, flux?