Introduction to Tanghuaiyuan: Tanghuaiyuan is opposite to Hanbaiyuan on the east side and is located in the west of Dai Temple. The original Yanxi Hall was formerly known as the Yanxi Hall. It was abandoned in the late Qing Dynasty and was named Tanghuai Courtyard because of the Tang pagoda trees in the courtyard. The original trees were tall and lush, providing shade for acres, but they withered during the Republic of China. In 1952, new locust trees were planted inside the withered locust trees. Now they are sparse and lush, commonly known as "Tang Huaibaozi". Under the tree, there is a stele with the characters "Tang Huai" written by Gan Yiji during the Wanli period of the Ming Dynasty, and a stele with "Poems of Tang Huai" written by Zhang Penghui during the Kangxi period of the Qing Dynasty. There is an inscription on the west tree written by Emperor Qianlong of the Qing Dynasty: "In the year when the rabbit's eyes were on Li's Sophora japonica, the old trunk of the Sophora japonica was leaning on the spring steps. How could it be that the green leaves were growing all over the sun, and it would be a good idea to sit high and sleep on the Emperor Xi's dream." On this occasion, the whole courtyard was filled with fragrance. The wall of hundreds of monuments, the ancient Sophora yin mountain, the Sophora fragrant pond, and the bonsai dotted in between, create a unique scene.