The original words are "the dragon sign of Zhongshan, surrounded by stones, which is the residence of the emperor." It describes the geographical situation of Nanjing. It is said that Zhuge Liang has been to Jinling (now Nanjing) and saw that the mountains and rivers in Jinling are surrounded by mountains on three sides, and the mountains are surrounded by water on one side, which is an excellent choice for ancient emperors to build cities and dominate. So he praised "Longteng Stone in Zhongshan, which is the residence of emperors."
Zhongshan is now Nanjing Zhongshan, and the stone is the stone city, which was built in Chu Weiwang at the foot of Liangshan Mountain in Nanjing for seven years. In geomantic omen, dragons generally refer to big rivers and tigers are mountains. Feng Shui says "Manager Shan can manage money". Behind the "mountain" represents the health and prosperity of the people, which naturally includes the luck of the country. To be vigorous, the most taboo empty; "Water" represents the front and dominates career and wealth. Be broad and flat to the water, the most taboo is small. Nanjing City is in line with the characteristics of geomantic omen, facing south, with a picture in front and a white tiger on the left. There is a photo in front, which is a mirror, generally referring to water. This is the Yangtze River and Xuanwu Lake. Backed by mountains, the ancient city of Nanjing is close to Jilong Mountain. Zuo Qinglong means that Zhongshan is surrounded by water and is the dragon plate of Zhongshan. The white tiger on the right, namely Liang Qingshan, where Stone Town is located, crouches like a tiger, crouching for Shi Hu.
Yang Rong, a great scholar of Wenyuange in Yongle period of Ming Dynasty, also praised: "The mountains and rivers in the world are magnificent and the pattern is broad. Nine planets is full of arches, and it can make Kyoto better than Jinling. "
After seeing the terrain of Nanjing, Sun Yat-sen also thought that Nanjing was surrounded by dragons, so the Republic of China made Nanjing its capital. When Sun Yat-sen died, he had a will: "After I die, I can be buried at the foot of Purple Mountain ..."