The philosophical significance of "three"

I think ancient philosophers highlighted a certain number, just using it as a comparison to summarize their theories. The number itself has no universal meaning. For example, Laozi said "three", but Mencius and Zou Yan said "five virtues" ", but Jia Yi said "six principles" and so on. These numbers all serve the theory itself.

However, the ancient Chinese were also particular about numbers. Generally speaking, one represents chaos, two represents the yin and yang when chaos begins, three represents the harmony of yin and yang, four often represents the four seasons, and five often represents benevolence, justice, etiquette, wisdom, and trust. Five Virtues, or Five Lucks. Lao Tzu said that when you reach three, that is, Yin Qi, Yang Qi and Zhong Qi, when you reach three, all things will come into being, and there is no need to continue further.