"Credo, quia impossibile est." -Tertullian

"There are only two (kinds of) worlds - your world, which is the real world, and other worlds, the fantasy. Worlds like this are the worlds of human imagination: their reality, or lack of reality, is not important. What is important is that they are there. These worlds provide an alternative. Provide an escape. Provide a threat. Provide a dream, and power; provide refuge, and pain. They give your world meaning.They do not exist; and thus they are all that matters. Do you understand?"

-Titania, The Books of Magic by Neil Gaiman