What does it mean to kill seven couples?

"Couple's Seven Killings" refers to the "Chen Wu" in the birth years of both husband and wife, that is, one of the heavenly stems and earthly branches. Chen Wu is a native land, representing good luck. Although Chen Wuren is unlucky, they can subdue fierce people and get rid of their desires by accumulating good deeds and using tantric methods. In addition, in the relationship between husband and wife, the change of seven kills usually means that the relationship between husband and wife has changed, which may be the weakening of feelings or other contradictions. In order to maintain the stable and harmonious relationship between husband and wife, measures need to be taken to adjust and improve.