Guo Chuan Xi or Guo Chuan Yu Xi are the keepsakes of ancient emperors in China. According to legend, after Qin Shihuang destroyed the six countries and unified China, he got the Choi of Harmony (lantian jade, not Choi of Harmony), which was carved as a national decree, and ordered Prime Minister Li Si to write eight insect and bird seals on the Choi of Harmony (lantian jade), which was carved by Yu Gong Sun Shou. Later, it was a symbol of orthodoxy in past dynasties. The emperor has six jade seals, and LZ said that the jade seal for signing documents generally uses one of the six; The law is only a symbol, symbolizing the orthodoxy of heaven and the long-term luck of the country.