"Until recently, we’ve only been able to guess about the actual psychological effects of fiction on individuals and society. But new research in psychology and broad-based literary analysis is finally taking questions about morality out of the realm of speculation.
"This research consistently shows that fiction does mold us. The more deeply we are cast under a story’s spell, the more potent its influence. In fact, fiction seems to be more effective at changing beliefs than nonfiction, which is designed to persuade through argument and evidence. Studies show that when we read nonfiction, we read with our shields up. We are critical and skeptical. But when we are absorbed in a story, we drop our intellectual guard. We are moved emotionally, and this seems to make us rubbery and easy to shape.
"But perhaps the most impressive finding is just how fiction shapes us: mainly for the better, not for the worse. Fiction enhances our ability to understand other people; it promotes a deep morality that cuts across religious and political creeds. More peculiarly, fiction’s happy endings seem to warp our sense of reality. They make us believe in a lie: that the world is more just than it actually is. But believing that lie has important effects for society — and it may even help explain why humans tell stories in the first place."