What does the number of five yin and one yang mean?

“Five yin and one yang are determined in the number” means that among the five elements, the yin and yang of the five elements of metal, wood, water, fire and earth have their own characteristics. Specifically, "five yin and one yang" refers to the yin and yang qualities of the five elements of metal, wood, water, fire, and earth. Among them, the four elements of metal, wood, water, and fire have both feminine and masculine qualities, while earth Elements have only masculine properties. This yin and yang quality plays an important role in the interdependent relationship of the Five Elements, which determines the manner and results of the interactions between different elements.

"Ding in numbers" is another important concept in Five Elements. It means that in the relationship between the five elements, numbers and counting methods are also very important. For example, in the relationship between the five elements, wood produces fire, the number of fire is two, and the number of wood is three; fire produces earth, the number of soil is five, and the number of fire is two; earth produces gold, the number of gold is four, and the number of earth is four. The number of water is five; metal produces water, the number of water is one, and the number of gold is four; water produces wood, the number of wood is eight, and the number of water is one. These numerical relationships are called "fixed numbers" in Five Elements theory, and they determine the order and proportion of the relationship between the five elements.

Therefore, the sentence "five yin and one yang are determined in number" can be understood as saying that in the Five Elements, the relationship between yin and yang and number is very important, and they determine the interaction between different elements. means and results. At the same time, this is also one of the important reasons why Five Elements is widely used in many fields such as traditional Chinese medicine, numerology, and Feng Shui.