Many spend their lives on trivial diversions, seeking earthly comfort and pleasure above all else. But Jesus said, "Whoever loses his life for my sake will save it," calling us into the eternal purpose and God-exalting life for which we were made. In this bestselling book, John Piper warns readers of the dangers of an irrelevant life that counts for nothing and calls Christians to the deeper joys, and risks, that matter for eternity.