He explored a bamboo forest behind the town’s ancient Shinto shrine and bushwhacked through the cedars and pines on a small mountain near the junior high school. One day, when he was seven or eight, he came across a hole in the ground. He peered inside and saw nothing but darkness. He came back the next day with a lantern and shimmied through the hole and found himself in a small cavern. He could see that passageways led to other chambers. Over the summer, he kept returning to the cave to marvel at the dance of the shadows on the walls.