Living in seclusion with few neighbors leads grass into wasteland.
Birds live in trees by the pool, and monks knock at the door.
Cross the bridge to separate colors, move stones and move cloud roots.
Come back here for a while, and you will realize your promise in the quiet period.
Jia Dao, a poet in the Tang Dynasty, was named Langxian. When he was young, he became a monk because he failed the exam. Later, he took the secular exam, but he didn't get into the "Jinshi" after all. He only worked as a small official such as the "master book of the Yangtze River", and the doctor was as poor as a church mouse. His poetry has a beautiful style and pays great attention to words and sentences.
Jia Dao went to Beijing (Chang 'an) because he went to take the exam. One day, he was reciting a poem on a donkey and suddenly got two sentences:
"Birds inhabit trees by the pool, and monks push the moon down the door."
Jia Dao thinks these two sentences are not bad. However, he thinks the word "push" in the next sentence is not good enough: since the door under the moon should have been closed at night, I'm afraid it can't be pushed open, so it's better to change it to "the monk knocks at the door under the moon." Thinking of this, he repeatedly read: "The monk pushes …" and "The monk knocks …", and his right hand unconsciously followed the performance: Han Yu, a famous literary giant, "Jing" and "the assistant minister of the official department", happened to pass by here and followed the ceremonial ceremony, crowding around. According to the rules at that time, pedestrians should avoid when officials pass by, otherwise it would be a crime. Jia Dao was fascinated by his poems at this moment, but he didn't realize it. When he approached, it was too late to escape. He was immediately caught by the police and taken to Han Yuma.
So they rode side by side, talked about some questions about poetry writing, and became friends from then on.
The idiom "thoughtful" came into being because of this story. Later, it was called "thoughtful" to describe the repeated study of words.