If thou hadst thy will what wouldst thou reserve?" said Manwe. "Of all thy realm what dost thou hold dearest?" All have their worth," said Yavanna, "and each contributes to the worth of the others. But the kelvar can flee or defend themselves, whereas the olvar that grow cannot. And among these I hold trees dear. Long in the growing, swift shall they be in the felling, and unless they pay toll with fruit upon their bough little mourned in their passing. So I see in my thought, would that the trees might speak on behalf of all things that have roots, and punish those that wrong them!
J. R. R. TolkienFairy tale does not deny the existence of sorrow and failure: the possibility of these is necessary to the joy of deliverance. It denies (in the face of much evidence, if you will) universal final defeat...giving a fleeting glimpse of Joy; Joy beyond the walls of the world, poignant as grief.
J. R. R. Tolkien