their lives because it does profoundly affect their lives, it ought to. If you didn't mourn someone when they were dead, when they die how could you have loved them when they were alive? That is, in a sense an easier set of reactions to explain. What puzzles about religion is belief in the Trinity and in hell and in 72 virgins and all of the other contentful beliefs that go well beyond a sense of awe at the immensity of the cosmos or loss in the sense of death. That's where Pascal Boyer and Dennis Barbour and others going to step in to why we're vulnerable