They can fly through walls or circle the planets, turn into pure light or meet long-dead relatives. Many have blissful experiences of universal love. Most do not want to return to the living. When they do, they're often endowed with special powers: They can predict the future or intuit people's thoughts. These are the testimonies of people who have had near death experiences (NDEs) and returned from the other side to tell the tale. Journalist Judy Bachrach decided to listen to their stories. [National Geographic:] Your book, Glimpsing Heaven: The Stories and Science of Life After Death, [describes] one scientist [who] suggests that NDEs may simply result from the brain shutting down, ... that, for instance, the brilliant light often perceived at the end of a tunnel is caused by loss of blood or hypoxia, lack of oxygen. How do you counter these arguments? [Bachrach:] The problem with the lack of oxygen explanation is that when there is a lack of oxygen, our recollections are fuzzy and sometimes non-existent. The less oxygen you have, the less you remember. But the people who have died, and recall their death travels, describe things in a very clear, concise, and structured way. Lack of oxygen would mean you barely remember anything. [NG:] You suggest there is a difference between brain function and consciousness. Can you talk about that idea? [Bachrach:] The brain is possibly ... not the only area of consciousness. Even when the brain is shut down, on certain occasions consciousness endures. One of the doctors I interviewed, a cardiologist in Holland, believes that consciousness may go on forever. So the postulate among some scientists is that the brain is not the only locus of thought.