Which is more important to future generations, father's grave or mother's grave?

Parents' graves have the greatest influence on their children. However, if your parents die and you are forty or fifty years old, or sixty years old, your parents' geomancy will not have a great influence on you, but it will have a great influence on future generations. If you were young when your parents died, only in your twenties, twenties or thirties, or under forty, and you were in your prime, then your parents' geomantic omen had the greatest influence on you. It is not only related to your official luck, your wealth, but also to the wealth of your descendants. In addition, a child who has not grown up or has grown up died when he (she) was young, and his (her) geomantic omen will not only have an impact on his (her) descendants (if any), but also have a great impact on the living parents, brothers and sisters.