The answer is simple. Sellers buy a lot of things at high prices, and buyers buy on demand. On the issue of selling combs to monks, it is in the hearts of buyers. As a salesperson, you have to complete a task that others think is impossible. In the face of major markets, it is difficult to sell your own things, and others can't figure out what they want to do. This is what we call a surprise, which of course captures the buyer's heart. In this short story, the second person sold 100 according to the respect of the people who went to the temple for the Buddha, and the third person sold 1000 according to the fact that the incense in the temple was more prosperous and Xie Jingfo's heart, robbed the heart of the incense burner and carved a charity comb to make the incense burner more devout to the Buddha! The temple benefited from the comb, and the seller reached his goal and completed the task by penetrating other people's hearts. Let's talk about this buyer first: the buyer itself is dispensable for the temple. I once said that I think it is really necessary to have such a thing. It's good for me to respect Buddha. The latter buyer thinks it is more fragrant to his temple and more spiritual to the Buddha, but it is also good to get a good idea from the seller. Buying a comb is also good for me. On second thought, I achieved my goal. Business is good for you and me. What I'm grasping here is people's self-interest