One of my favorite books by C.S. Lewis is The Screwtape Letters, which is written from the perspective of a demon named Screwtape instructing another demon on how to tempt a young man into hell. It’s one of my favorites, because Lewis has a keen understanding of human people and does a terrific job of observing the habits we fall into that weaken us spiritually. In one particular letter, Screwtape talks about using pleasures to tempt the young man. He explains that all people experience a restlessness that comes from their spiritual state. Because we will not face the fact that we are not happ...