Square introduction: On both sides of the square to the north of the ancient theater building are two six-foot-high wooden poles (commonly known as flagpoles). On both sides of the poles are the corresponding "Heqing" and "Haiyan" archways. Emperor Qianlong of the Qing Dynasty The five times I stayed at the Dragon King Temple, I always entered and exited through these two archways. The word "Heqing" symbolizes peace in the world, and the word "Haiyan" symbolizes the peace of the country and the people. There is a road to the east from the "Heqing" archway. It was a passage set up by Emperor Kangxi to facilitate the masses to worship the Dragon King when he built the Dragon King Temple. Later, because Emperor Qianlong visited the Dragon King Temple in the south of the Yangtze River six times and walked across the road five times, the road was naturally upgraded to "Royal Horse Road".