Existentialism

Only in the hope of this [the rebirth of Dionysos] is there a gleam of joy on the countenance of a world torn apart and shattered into individuals; myth symbolizes this in the image of Demeter, sunk in eternal mourning, who knows no happiness until she is told that she can give birth to Dionysos again. In the views described here we already have all the constituent elements of a profound and pessimistic way of looking at the world and thus, at the same time, of the doctrine of the Mysteries taught by tragedy: the fundamental recognition that everything which exists is a unity; the view that individuation is the primal source of all evil; and art as the joyous hope that the spell of individuation can be broken, a premonition of unity restored.

- Nietzsche, "The Birth of Tragedy" (p783)