No sooner have you grabbed hold of it than myth opens out into a fan of a thousand segments. Here the variant is the origin. Everything that happens, happens this way, or that way, or this other way. And in each of these diverging stories all the others are reflected, all brush by us like folds of the same cloth. If out of some perversity of tradition, only one version of some mythical event has come down to us, it is like a body without a shadow, and we must do our best to trace out that invisible shadow in our minds.
— Roberto Calasso, The Marriage of Cadmus and Harmony.