Buddhists often say that 99 is one.

There is a saying in the Buddhist language: "99 is unified, and it will eventually become a positive result." Here, "Nine" is the biggest and the most extreme, and it is regarded as the "most" in ancient and modern humanistic architecture. If we want to "go back to 1999 and finally make a positive result", we still need to "147, 369" and move forward step by step. When you return to 1999, you will never come from anywhere, go out and return to the original state. In fact, this reply is not a simple regression, but sublimation, re-creation, nirvana and a new starting point. There is another explanation: in the final analysis. In feng shui culture, when the number nine is used up, it naturally becomes one. Represents the natural cycle.