Who can tell me how to see the dead relatives?

According to superstition, people will return to their souls seven days after death, which means going home to see their families for the last time. However, there are rules that people are not allowed to talk. If they say it, they will be confused at that time, so even if they return to the soul, their families will not know. If her mother hears him, it must be a fantasy, because people's nerves will have fantasies when they are extremely nervous.