Explanation: Refers to the mixed interaction. With the "Participation Wu intricate." Source: Ming Tang Shun the "principal section of the book with the million thinking": "the number of persons living requirements, such as Achillea Gua sort out divining stalks the beginning, the Senate vertical and Yin Wu wrong those who have not divided; death and several persons such as the hexagram, after painting has become, for nine to The yin and yang, who also established six. "