The ancients said: the eight characters are all yang, and the mother is gram; Eight-character pure yin, gram father. This is in line with the principle of restraint of yin and yang, and the mother is female and belongs to yin; The father is male and belongs to Yang; Too much yang will hurt yin, and too much yin will hurt yang. Both men and women are eight-character masculine, too strong, never tolerant, unable to listen to different opinions, willful and self-righteous, resulting in family discord and contradiction, leading to unsatisfactory marriage, divorce and remarriage.