That's feudal superstition. Tomb-Sweeping Day is a traditional festival in China, and it is also one of the most important festivals to worship ancestors and sweep graves. If the ancestral blessing is true, whose ancestors don't want to bless their offspring? Since our ancestors blessed us, do we still need to go to college? Ask your ancestors to help you get promoted and get rich directly! If the ancestors don't have this ability, they still have to work hard on their own.