Flaxseed is difficult to digest. We ordinary people usually only eat flaxseed once and can't digest it at all. If we walk through the stomach once, the human body will suffer instead of being blessed. After being steamed for nine times, flax is easily absorbed by human body, and the nutrients will not be lost, so that the functions of flax can be fully exerted; Taoism believes that nine is the extreme number, and the extreme number means change. If you want to know the way of keeping in good health, you must first understand the coexistence of yin and yang and the unity of man and nature. Anode regeneration cathode, cathode regeneration anode; Sunbathing represents the absorption of yang, and steaming produces water vapor, which represents the process of yin. In the process of nine alternation of yin and yang, the physical structure and composition structure of flax itself were broken, which further stimulated the health care effect.