In a second, he remembered: the Mu-Mon-Kan or “Gateless Gate” of Rinzai Zen contained a story about a monk who kept asking a Zen Master, “What is the Buddha?” Each time he asked, he got hit upside the head with the Master’s staff. Finally discouraged, he left and sought enlightenment with another Master, who asked him why he had left the previous teacher. When the poor gawk explained, the second Master gave him the ontological hotfoot: “Go back to your previous Master at once,” he cried, “and apologize for not showing enough appreciation of his grandmotherly kindness!”