About 30 percent of hospice patients report a "visitation" by someone who is not there, a phenomenon known in end-of-life care as a deathbed vision. These visions can be of dead friends or family members and occur on average three days before death. Strikingly, individuals from wildly diverse geographic regions and religions--from New York to Japan to Moldova to Papua New Guinea--report similar visions. Appearances of our dead during serious illness,...