"[Fairy stories do] not deny the existence of dyscatastrophe, of sorrow and failure: the possibility of these is necesary to the joy of deliverance; it denies (in the face of much evidence, if you will) universal final defeat and in so far is evangelium, giving a fleeting glimpse of Joy, Joy beyond the walls of the world, poignant as grief."
- J.R.R. Tolkien, from “On Fairy Stories.”