A small boy longed to roll and play in the grass like his father had when he was a child. But the boy lived in a concrete city without any grass or trees. Instead, they "had roads, walls and lots of other ugly things." Then one day the boy and his friend discovered a sapling hiding behind a low wall. The boy had never seen a tree before. He was so amazed, he dreamed about the tree. "I imagined it tall. Huge, even. And majestic," he says. So when they...