Generally, if the husband and wife don't die at the same time, they need to wait for the left (male) or the right (female), so there are changes in the details of burial, such as how to be buried together. There are "burial in the same cave", "burial in different caves" and "burial in the same grave and different caves", which are the types of burial in different caves; Further, it is "buried in the same cave." This kind of joint burial is very popular in the Loess Plateau in northern China. When one of the husband and wife dies, he goes to the grave first, and when the other dies, he digs the grave again, leaving the coffin behind. There is a red cloth belt across the mouth of the coffin, which means it is similar to the knot tied by the couple at the wedding. Among the ethnic minorities in southwest China, there are couples buried together in a coffin, such as the burial of Yao Cliff in Baiku, Guangxi, where two bones of men and women can be seen in one coffin. Burying in a tomb is relatively simple. First, put the coffin of the deceased into the built tomb, then open the tomb door and put the new coffin in.
Joint burial is the product of monogamous marriage. This burial system reflects people's emotional consciousness and is an extension of human marriage and love relationship with the help of the concept of soul. They were lovers before their death, and they are willing to live in the same cave after their death and continue to be lovers; If you can't get married before you die, you are willing to get married after you die and get married in the next life. At the same time, more importantly, it reflects the strong influence of religious concepts and husband rights. In the old society, women were not born family members, but married family members, so they had to be buried with family members. In addition, women have no independent social status. This fortress is only an accessory of her husband. Life is the husband, and death is the ghost of the husband. Of course, she will be buried with her husband.