Although we have not experienced ancient life, we can learn some life scenes of ancient people from TV. Generally, we can see many concubines gambling with jade after their death in court dramas. Then why did the ancient concubines use jade to block them after they died? In fact, the role of the "door" is the same as that of Empress Dowager Cixi when she took the pearl of the night into Tibet, mainly to prevent mercury from leaving the body, because mercury will automatically condense when it meets jade, thus protecting the body from decay.

Because the ancient people thought that as long as they were related to the royal family, their status must be very expensive, and they should keep their bodies after death, so jade was generally used to gamble on the soul door after death, not for decoration, because the ancient people used cinnabar and mercury to soak the body, and the role of putting jade was to prevent mercury from flowing into the body, because mercury would automatically condense when it met jade, so that the body was in a closed space, which could effectively prevent the body.

When we watch TV, we will also find that there is a night pearl in the mouth of Empress Dowager Cixi after her death, which is similar to jade in order to prevent the corpse from rotting rapidly. However, some grave robbers will find that the jewelry they brought out has changed color. This is because after the jewelry is taken out, it will undergo an oxidation reaction with the air, so the color will change rapidly, and the body will rot quickly after the official opening. Therefore, in ancient times,

Everyone wants to keep his body after death, so he will try to keep it. Jade is a method used by ancient people. Although people didn't know much about chemicals and chemical reactions at that time, the principles they used were related to chemistry.