This is a folk custom that has been circulating for thousands of years. Because ancient China people were dominated by patriarchal society, their fathers had a higher social status in the family, especially in the tombs after death. The funeral customs that have continued to this day have also been preserved in most areas. The order of the names on the tombstone where parents are buried together is that the father is right and the mother is left. Even the mother's name has only the surname but no name. For example, "Wang" represents the name of the hostess in the tomb.
This kind of parents' burial tomb only has the father's tombstone and inscription, which has no influence on the geomantic omen of later generations. Because of the history of funeral customs that lasted for thousands of years, there are no words that have an influence on future generations.