In the history of China, funeral etiquette occupies a very important position in the traditional etiquette of China. In the eyes of the ancients, a person's birth and end are very important. In addition, China people attach great importance to filial piety, so the ancients have always observed funeral etiquette.

There is a special place in ancient funeral etiquette, that is, after death, gold and silver jewelry will be placed in the mouth of the deceased. This custom has been recorded for a long time in ancient times. This funeral custom is called holding the mouth, which is recorded in the book Zhou Li, and it is recorded that "the great loss is full of jade, including jade". Xu Shen of the Han Dynasty also wrote in Shuo Wen Jie Zi: "_