" Probably every writer making a secondary world, a fantasy, every sub-creator, wishes in some measure to be a real maker, or hopes that he is drawing on reality: hopes that the peculiar quality of this secondary world (if not all the details) are derived from Reality, or are flowing into it. If he indeed achieves a quality that can fairly be described by the dictionary definition: "inner consistency of reality," it is difficult to conceive how this can be, if the work does not in some way partake of reality. The peculiar quality of the "joy" in successful Fantasy can thus be explained as a sudden glimpse of the underlying reality or truth. It is not only a "consolation" for the sorrow of this world, but a satisfaction, and an answer to that question, "Is it true?" The answer that I gave to that question at first was (quite rightly): "If you have built your little world well, yes: it is true in that world." That is enough for the artist (or the artist part of the artist). But in the "eucatastrophe" we see in a brief vision that the answer may be greater—it may be a far-off gleam or echo of evangelium in the real world. "

― J.R.R. Tolkien , On Fairy-Stories