There are mainly the following explanations:
1. Small or little, it means nothing. For example, "Zuo Zhuan, the Seventeen Years of Xianggong": "The Song Dynasty is just a small country, and there are curses and wishes, which is the source of disaster."
2. Square, describe people's heart. For example, in the Answer to Su Wushu, "A mere heart is eager for this ear."
3. It is extended to sincere feelings. For example, "New Ode to Yutai · Fanqin": "Why do you send it to a small area? The bright moon pearl is in your ears."
4. It means to be single-minded. For example, in the poem "There is a beautiful hall in Jinling": "I hope the public will enjoy this special moment, and be careful not to just think about home."
5. A self satisfied look. For example, in the Book of the Lord of Commerce, Xiuquan: "In today's troubled times, all the monarchs and officials are just good at the interests of a country, but they should manage the importance of an official so that he can be private. The reason why the country is in danger is that."
6. Stickiness and limitation. For example, The Book of the Han Dynasty: The Biography of King Yang: "It is the legacy of a sage. Why should we just keep hearing about it?"
7. Foolish and mediocre. For example, "Yu Tai Xin Yong - Anonymous": "A mother is a government official, what is too small!"
8. Self styled modest words. For example, in The Book of the Later Han Dynasty, Biography of Dou Rong: "Only the general can save what he has offered."