What is the folk saying that "thunder can't move the grave"?

Thunder sweeping graves is a folk legend. It is said that when lightning strikes a grave, it will lead to a series of ominous events. According to folklore, thunder sweeping the grave will make the dead in the tomb uneasy and even lead to disaster and bad luck. People think this is because lightning has powerful energy and can disturb the soul in the grave. Therefore, the thunder sweeping the grave is regarded as an ominous sign, and people will try to avoid going near the grave in thunderstorm weather. In addition, some people think that thunder will lead to the decline and misfortune of the family, so some measures will be taken to avoid this situation, such as planting some plants around the grave or conducting sacrificial ceremonies. Generally speaking, thunder sweeping graves is regarded as an ominous phenomenon in folklore, and people will try to avoid activities related to it.