The story of a scholar who became a monk after meeting a Taoist priest in the exam.

This story is called "A Dream in the Yellow Chamber" and comes from Shi Shuo Xin Yu. There are several versions of this story, one of which is very similar to what you said (you can search for cow dreams on Baidu, and the following is a part of the original text cut for you): A Pillow Book by Tang Jiji-Strange Talk:' Are you dreaming?' Weng smiled and said, "Things in the world are still going on." "A dream.

Lv Dongbin is a famous rock, its name is Dong Bin, and its name is "Spring Sheep". Tang Jingzhao House (now Chang 'an County, Shaanxi Province) was born. Legend has it that when his mother was going to give birth to him, there was a strange smell in the room, and Yue Xian was furious. A white crane fell from the sky, flew into his mother's account and disappeared. Lv Dongbin, who was born, was really outstanding. He was smart since childhood and kept a diary of thousands of words. Later, Lv Dongbin visited Lushan Mountain, saw a real dragon, and taught the Tiandun swordsmanship. At the age of 64, when Lv Dongbin visited Chang 'an, he met a feather scholar who wrote poems on the wall in a hotel. When Lv Dongbin saw that he was eccentric and poetic, he asked his name. Yu Shi said, "I'm Mr. Fang Yun. I live in He Ling, Zhong Nanshan. Do you want to go with me? " Lv Dongbin, however unfinished, disagreed. This Mr. Fang Yun is Zhong Liquan. In the evening, Zhong Liquan and Lv Dongbin stay in the bar together. When Lv Dongbin was asleep, Mr. Fang Yun cooked for him alone. He dreamed that he was the top scholar, proud of officialdom, full of children and grandchildren, and extremely glorious; Suddenly, he was convicted of a felony, his family property was confiscated and his wife separated. When he was old, he was alone, poor and shivering in the snow. He was about to sigh when he suddenly woke up. Zhong Liquan's meal was not cooked yet, so Zhong Liquan wrote a poem entitled "Huang Liang was not cooked yet, and he dreamed of Chinese food". Lv Dongbin exclaimed, "Does Mr. Wang know my dream?" Zhong Liquan said, "The dream you just had is full of ups and downs. Fifty years old is like a flash! What you get is not worth celebrating, and what you lose is not worth mourning. Life is like a dream. " Therefore, Lv Dongbin decided to abandon his family, take Zhong Liquan as his teacher, and enter Zhong Nanshan for monasticism. Lv Dongbin has Taoism and swordsmanship to kill demons and harm people. Lv Dongbin is the most famous of the Eight Immortals, and there are many legends about him. The first idiom of Kang's Bamboo Leaf Boat: A Dream was published in Pillow Stories in the Tang Dynasty: "After seven years of opening, Lu Sheng became famous in England, and his handwriting was excellent. In Handan, Lu Weng, who met Tao, lamented that he was poor. Weng Nai took a pillow from his bag and gave it to him. Say,' I'm a pillow, and it's time for my son to show satisfaction!' When the host steamed millet, Mr. Wang fell asleep, dreamed and went to his house. A few months later, he married a girl from Cui Shi, Qinghe. She is beautiful, and the fatter she is, the happier she is! So he promoted Jinshi, tired of officials and people, moved our time, and broke Rong Lu. For more than ten years, his five sons have been officials, and his grandchildren are more than ten. His marriage was one of the best in the world, and he was over 80 years old when he died. And when I wake up, the steamed millet is not ripe yet. Strange:' Is it a dream?' Weng smiled and said,' power and life are like ears!' After a long time, I bowed my head and thanked him. "After this absurd dream, Lu Shengcai understood that he was not going to Beijing to take the exam, but to go into the mountains to cultivate monks. The above events are also recorded in Taiping Guangji. Volume 82. Lu Weng.