koan

1. (Zen Buddhism) A story about a Zen master and his student, sometimes like a riddle, other times like a fable or parable, which has become an object of Zen study, and which, when meditated upon, may unlock mechanisms in the Zen student’s mind leading to satori.Examples: "Zen, with its absurdist koan, laughs at life much the way the Marx brothers did. What exactly can you make of a philosophical system whose teacher answers the question, "How do you see things so clearly?" with the seeming one-liner, "I close my eyes"?"