There is only one truth in the world, and that is change. There is nothing that remains unchanged. The law of development of anything is the same as that of the 12 houses of longevity, just like people. All things grow. A person is born, and a person is born. When you grow up, you need to take a bath. When you grow up, you need to have adult rites and crowns. You start to work and develop into an official. Then your career reaches its peak. Everything will go downhill. You start to get sick, you get old, you die, and you are buried in a grave. How many years have passed? From now on, even the last yin energy will be gone, and it will be truly extinct. A new life will begin to circulate, and it will slowly form, just like the child in the belly, and then it will be born again. This is 12 Palace, longevity, shower, crown, official position, emperor prosperity, decline, illness, death, tomb, death, fetus, nourishment. Everything in the world develops according to this law, and the change of imperial courts is also the same. The Qing Dynasty perished. From a technical point of view, the Qi was exhausted. It is related to Feng Shui, but it is not absolute. Every dynasty attaches great importance to Feng Shui, but artificial More importantly, for example, in the Qing Dynasty, if the subsequent emperors were as smart as Kangxi, would they still have a 200-year history? If the Song Dynasty had not had the rise of the Xiongnu, would it still have a long history? So the human factor is absolute.