A promise made when making a friend is a promise that must be kept even if it is thousands of miles away. This poem emphasizes the importance of keeping promises and keeping one's word among friends.
Between friends, there is no shortage of courtesy and honor, but this kind of exchange is based on a promise of a thousand pieces of gold. Without this kind of credit, friendship becomes a piece of paper without any meaning.
This is from the book "Jiejie Junior Xing", written by Yu Shinan. Yu Shinan was a politician, calligrapher and writer in the early Tang Dynasty, and the collection of Yu Secret Supervisors exists today.
Expanded Information
Jiegu Junior Field Line is an old musical theme for writing about chivalry, originally from Cao Zhi's "Jiegu Chuan": "Jiegu Junior Field, complaining about Luo Beimang." He said that the young man was light-hearted and valued righteousness, and that he would make chivalrous guests for the amusement field, and generously set up the matter of success and fame. The "juvenile field" is a place where juveniles gather.
Many literati in ancient times had the sentiment of chivalry, and wrote many stirring poems using this musical title. But comparatively speaking, Bao Zhao poem more mercenary gas, Yu Xin poem more boudoir gas, Li Bai also more frivolous gas; Liu Xiaowei poem more flattering gas, Liu Shaoan poem more fame and fortune gas, Lu Zhaolin poem gas vein bias stagnation, write more calm and elegant when the number of Yu Shinan poem.