J. R. R. Tolkien, the author of The Lord of the Rings, often employed a storytelling device he called eucatastrophe. A catastrophe is an unexpected evil, but Tolkien added the Greek prefix eu- meaning “good” to express the unexpected appearing of goodness. He defined it as “the sudden happy turn in a story which pierces you with a joy that brings you to tears.” It has this effect on us “because it is a sudden glimpse of Truth” in which we “feel a sudden relief as if a major limb out of joint had suddenly snapped back.”

