Feng Shui: Why do ancestors wipe their sons' blood when they are buried?

This statement is unscientific, and there is no scientific basis to prove that this practice in Feng Shui is directly related to the burial of ancestors.

Feng shui is a traditional culture, involving many aspects, including architecture, home, cemetery and so on. In Feng Shui, some customs and practices may be thought to be helpful to improve some aspects of fortune, but these are not scientifically based.

Therefore, we should treat Feng Shui rationally, don't be overly superstitious, pay attention to practical efforts and struggles, and create better living conditions and future for ourselves and our families.