koan
A Buffalo Passes Through The Enclosure
Mumonkan, Case 37
Text
Goso said: "When a buffalo goes out of his enclosure to the edge of the abyss, his horns and his head and his hoofs all pass through, but why can't the tail also pass?" Mumon’s comment: If anyone can open one eye at this point and say a word of Zen, he is qualified to repay the four gratifications, and, not only that, he can save all sentient beings under him. But if he cannot say such a word of true Zen, he should turn back to his tail. If the buffalo runs, he will fall into the trench; If he returns, he will be butchered. That little tail Is a very strange thing.
Attribution
By Zhaozhou Congshen
From Mumonkan
Sources
Mumonkan case 37: A Buffalo Passes Through The Enclosure