On the translation of Strange Tales from a Lonely Studio. Kneel down!

There is a man named Mi Buyun in Zhangqiu, Shandong Province, who is good at divination. Every time I get together with friends, Yaji: refers to the gathering of scholars to recite poems and discuss knowledge as a reward. Play with friends one day. A friend saw a few clouds in the sky and came up with a couplet: "Sheep fat white jade sky", and asked Mi Buyun to write a couplet. Mi Buyun divined and said, "Ask the old Dong in the south of the city. He knows the bottom line. " All his friends suspected that he was talking nonsense and didn't care Later, a friend happened to be on a business trip in the south of the city, and it was strange to see the land there as red as vermilion. Seeing an old man putting pigs beside him, I asked him why the land was so red. The old man said, "This is pig blood red mud." Hearing this sentence, my friend suddenly remembered the divination couplet, frightened to disgrace, and quickly asked the old man what his surname was. The old man replied, "I'm Lao Dong." My friend was surprised: it's not surprising that I can make couplets, but it's really amazing to predict that I will meet old Dong in the south of the city and get couplets from him. Note: "Sheep fat and white jade sky" and "pig blood red mud" are just a pair of couplets.