What is Miyagi?

Miyagi, also known as Ouchi and Neigong, commonly known as the Forbidden City and Zi Yuan, is the place where Zhu Yuanzhang lived, handled state affairs, accepted Chinese and foreign envoys to appear before him, and lived with members of the royal family. It is located in the innermost part of the four great walls of Nanjing, surrounded by the Royal River.

Miyagi was built in 1366 by Liu Bowen, who is proficient in geomantic omen, and then filled with lakes, so the terrain is high in the south and low in the north. Miyagi sits facing south and has a rectangular plane. The main body of the palace wall is about 950 meters long from north to south, 750 meters wide from east to west and 3.4 kilometers in circumference.

On the wall of Miyagi, there were four gates at the earliest, and 1382 rebuilt six gates. The south of the main entrance is the Wumen Gate, the left and right sides of the Wumen Gate are the left and right doors, the west gate is the Xihua Gate, the east gate is the Donghua Gate, and the north gate is the Xuanwu Gate. Xuanwu Gate, commonly known as "Thick Gate", is taken from the Kun hexagram in the Book of Changes: "The terrain is Kun, and the gentleman carries things with virtue." The front of the meridian gate is the place where imperial edicts and court announcements are conveyed, and it is also the place where the emperor punishes the minister's "court aides".