Zen story: Bankei's Miracle

Bankei opened a Zen school not far away from another Buddhist school. Over a few weeks, many students from the other school began to attend Bankei's lectures. Eventually the other school's Master called on Bankei, who was in the middle of a lecture. The other Master scolded his students for abandoning his school, and yelled at Bankei, saying that *his* teacher could perform miracles such as walking on water and signing his name from the other side of a river. Bankei replied, "My miracle is that when I'm hungry, I eat, and when I am tired, I sleep."