"I never imagined that the dragon was of the same order as the horse. And that was not solely because I saw horses daily, but never even the footprint of a worm. The dragon had the trademark Of Faerie written plain upon him. In whatever world he had his being it was an Other-world. Fantasy, the making or glimpsing of Other-worlds, was the heart of the desire of Faerie. I desired dragons with a profound desire. Of course, I in my timid body did not wish to have them in the neighbourhood, intruding into my relatively safe world, in which it was, for instance, possible to read stories in peace of mind, free from fear. But the world that contained even the imagination of Fafnir was richer and more beautiful, at whatever the cost of peril."
--from On Fairy-stories, by J. R. R. Tolkien.