Introduction to Nantianmen: Nantianmen is actually the arched stone gate under the Lingyan Hou Pavilion in Yishan Mountain. The original Lingyan Hou Pavilion was also called Yishan Temple. In the Sui, Tang, Song, Jin and Yuan dynasties, the God of Yishan was granted the title of Lingyanhou, so Lingyanhou was also the God of Yishan. The Yishan Temple has a stone arch as the door, a stone pavilion as a pavilion, and a temple built on the pavilion. It faces south and is solemn and solemn. From the Ming Dynasty to the present, people also call Lingyan Hou Pavilion Nantianmen.