_A monk who lectured on Buddhism came to the Master and asked, "What is the teaching advocated by the Ch'an masters?" Ma-tsu posed a counterquestion: "What teachings do you maintain?" The monk replied that he had lectured on more than twenty sutras and sastras. The Master exclaimed, "Are you not a lion?" The monk said, "I do not venture to say that." The Master puffed twice and the monk commented, "This is the way to teach Ch'an." Ma-tsu retorted, "What way do you mean?" and the monk said, "The way the lion leaves the den." The Master became silent. Immediately the monk remarked, "This is also the way of Ch'an teaching." At this the Master again asked, "What way do you mean?" "The lion remains in his den." "When there is neither going out nor remaining in, what way would you say this was?" The monk made no answer. . . .17 _ Ma-tsu had posed a seemingly unanswerable question, at least a question that logic could not answer. This provocative exchange, later to be known as a mondo, was a new teaching technique that departed significantly from the earlier methods of Hui-neng and Shen-hui, who mounted a platform, gave a sermon, and then politely received questions from the audience. But how did Ma-tsu handle this question when it was presented to him? He fell back on the fact that reality is what we make it, and all things return to the mind. He once handled essentially the same question that he put to the visiting monk, showing how it can be done. His response is the essence of Zen. _A monk once drew four lines in front of Ma-tsu. The top line was long and the remaining three were short. He then demanded of the Master, "Besides saying that one line is long and the other three are short, what else could you say?" Ma-tsu drew one line on the ground and said, "This could be called either long or short. That is my answer._"18_ _Language is deceptive. But if it is used to construct an anti-logical question, it can equally be used to construct an anti-logical reply.