Generally speaking, mountains are dragons. The farther the mountain is, the bigger the mountain, the better. But in the end, it is still necessary to knot slowly, with affection, preferably green mountains and green waters. For example, in Beijing, the source of Beijing knot is Kunlun Mountain, which is endless and finally suffocates in Beijing. The mountain source of Nanjing City is too small and short. Therefore, although Beijing lacks aura (lack of water and aura, for example, China's diplomacy looks unremarkable on the surface), it is still magnificent and more stable, and has not wavered on the core and fundamental issues. Water potential is generally surrounded by water potential as affectionate water, which brings quicksand deposition in the upper reaches, so it is forbidden to go against the current. For example, Jiangnan, where Nanjing is surrounded by the Yangtze River, has developed better than Jiangbei. Both the mountain (origin) and the water (dehydration) are the final landing points, and they are all gas gathering. Without gas, everything would be still.