What really happens when we die? Is there a light at the end of the tunnel? A surprising number of people have died and lived to tell the tale-an estimated 15 million Americans and 4 to 5 percent of the global population have had a near-death experience. "The Big Book of Near-Death Experiences" is the encyclopedia of this phenomenon, including crucial research regarding the experience, its aftereffects, and the implications for all of us who someday...