In different religions, there are different afterlives. Different paradises, different hells. In this book, when you are too normal, and who lived a too normal life, who doesn't believe in religion, you get sent back to live on Earth where there is no paradise. You are one of the few wandering souls. But when Kaleb Williams died and becomes a wandering soul, he finds Maya Wells who says that her grandfather told her, if she were to become a lost soul, the only way to find peace was to find their body.