In ancient times, when the human sacrifice system was implemented, why did you pour money into people's bodies?

In ancient times, due to low productivity and underdeveloped technology, people were relatively superstitious, especially fearing ghosts and gods. Therefore, if the average person had a high fame and fortune before his death, he wanted to keep his appearance after his death, so the burial system was born. There will be many funerary objects after death, and even some people will be buried, but sometimes when he is buried, he will pour silver into the living. What is the reason?

Anyone familiar with chemical knowledge knows that mercury has antiseptic effect, and this system is often used to prevent corpses from rotting. For example, after Zhu Yuanzhang's death, many concubines and maids were buried, so silver was poured into them when they were alive, in order to ensure that the bodies would not rot after many years, just like before.

Once in the plot of Ghost Blowing Lights, there were cases where children were buried in ancient tombs, and there were also cases in reality. 1987, archaeologists found children in an ancient tomb. They were all filled with mercury before their death, and even all parts of their bodies were dug and filled with mercury, and the outside of their bodies was specially coated with silver powder, which looked particularly like specimens. In this case, even if.

In our modern eyes, this way of offering sacrifices or even pouring silver is cruel. In the eyes of ancient people, it may be that they believe that they can go to different worlds after death, and they are eager for those spiritual children to accompany them to complete their goals and hope of becoming immortals. What do you think of this system?