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.     
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