Tom had lost his faith. He felt a mild sense of euphoria at having rediscovered the freedom to think, to act, without fear of divine retribution and condemnation. He also felt apprehension that when he died, nothing would follow. There would be no heaven, no hell, no resurrection, no rapture — no life beyond the grave. When Tom breathed his last, he would be no more. At 25, when he’d first abandoned belief in God, death didn’t bother him. Lately, however, episodes of depression troubled him. His parents had died, first his father to a heart attack, and then his mother to an agonizing battle with breast cancer. A few years later he lost a good friend to a tragic automobile accident. Knowing he would never see any of them again, a sinking sense of hopelessness seeped into his psyche. He understood the illogical nature of belief, especially belief in Christianity’s god, a god of “love” that threatened to roast all unbelievers in a torturous chamber of unimaginable horror throughout a...