By dipping them in myth we see them more clearly.

The value of the myth is that it takes all the things we know and restores to them the rich significance which has been hidden by 'the veil of familiarity'. The child enjoys his cold meat (otherwise dull to him) by pretending it is buffalo, just killed with his own bow and arrow. And the child is wise. The real meat comes back to him more savoury for having been dipped in a story; you might say that only then is it the real meat. If you are tired of the real landscape, look at it in a mirror. By putting bread, gold, horse, apple, or the very roads into a myth, we do not retreat from reality: we rediscover it. As long as the story lingers in our mind, the real things are more themselves. This book [The Lord of the Rings] applies the treatment not only to bread or apple but to good and evil, to our endless perils, our anguish, and our joys. By dipping them in myth we see them more clearly. I do not think he [Tolkien] could have done it any other way.

—C. S. Lewis, "Tolkien's The Lord of the Rings," On Stories and Other Essays on Literature, p. 90.