Both Li Yuan and Li Shimin started from Taiyuan and eventually established the Tang Dynasty. It is inseparable from Long Mai that Taiyuan is rich in emperors. To say this is also a set of feudal superstitions, saying that Taiyuan is a good Long Mai, so it will be rich in emperors. Long Mai, a thing in Feng Shui. It is said that the dragon is in the shape of mountains and rivers.
There is a saying in Long Mai that there is a leading dragon's tail. When this was brought to the mountains, the situation in the mountains changed. However, if you really can become an emperor by relying on Long Mai, it is actually unreliable. Now we all know that science is the truth, and Mr. Long Mai is unreliable. Therefore, Yang Di and Yang Guang and Li Shimin of Emperor Taizong were born in Taiyuan, which is still inseparable from people's own efforts.