Maybe this statement is superstitious, but closed-door burial looks really scary. People should return to dust after death, but they are placed in the houses of the living, and the houses of the living are used as cemeteries. I believe no one can stand it.
From a scientific point of view, the coffin can't completely block the smell of the body, and it will stink in a few months. In the case of killing his wife in Huaxian County, because the deceased was married, it was customary not to be buried in his ancestral grave. In addition, after the incident, no one in the husband's family came forward to deal with the aftermath. On February 24, the family of the deceased put the body of the deceased in a coffin and sealed it in the husband's family's main house, so it was closed for burial.
The above is for reference only, don't be superstitious.