The Gateless Gate, by Ekai, called Mu-mon, tr. Nyogen Senzaki and Paul Reps , at sacred-texts.com
Sekiso asked: "How can you proceed on from the top of a hundred-foot pole?" Another Zen teacher said: "One who sits on the top of a hundred-foot pole has attained a certain height but still is not handling Zen freely. He should proceed on from there and appear with his whole body in the ten parts of the world."
Mumon's comment: One can continue his steps or turn his body freely about on the top of the pole. In either case he should be respected. I want to ask you monks, however: How will you proceed from the top of that pole? Look out!