Excuse me, what does the three-in-one five-in-one in the eight characters mean?

In eight characters, three-in-one and five-in-one refer to a situation in which heaven and earth cooperate with each other. They represent the harmony and coordination between the five elements. 1. Three-in-one: refers to three combinations with the same heavenly stems and heavenly stems, such as Jiayin, Shen Bing and Wuxu. There is a saying in the Sanhe Bureau that "the sky is dry and iron is combined", which means that the sky is dry and fine, and it is as soft and flexible as iron. 2. Five combinations: refers to five combinations with the same heavenly stems in the four pillars of eight characters, such as Wu Jia, Yisi and Chen Bing. The Fifth Co-operation Bureau has the saying of "Tiangan alloy", which means that the five elements form a golden and harmonious union. In the eight-character analysis, three-in-one and five-in-one represent Geely's situation, indicating that personal difficulties and obstacles will be solved and it will be easier to achieve success and development.