In the South American rainforest, there is a tribe called the Desana, who see the world as a fixed quantity of energy that flows between all creatures. Every birth must therefore engender a death, and every death brings forth another birth. This way, the energy of the world remains complete. When they hunt for food, the Desana know the animals they kill will leave a hole in the spiritual well. But that hole will be filled, they believe, by the Desana hunters when they die. Were there no men dying, there would be no birds or fish being born. I like this idea. Morrie likes it, too. The closer he gets to goodbye, the more he seems to feel we are all creatures in the same forest. What we take, we must replenish. "It's only fair," he says.