Introduction to the Monument of the Tang Dynasty: The full name of the stele is "The Monument to Praise the Saints of Songyang in the Tang Dynasty". It was erected in the third year of Tianbao in the Tang Dynasty (744 AD). The stele is 9.02 meters high, 2.04 meters wide and 1.05 meters thick. The Tang stele weighs more than 80 tons, and the cap alone weighs more than 10 tons. It is grand in structure and exquisitely carved. The entire stele has 1,078 words. The content mainly tells the story of Sun Taichong, a Taoist priest from Songyang Temple, who made nine rounds of alchemy for Li Longji, Emperor Xuanzong of the Tang Dynasty. Li Linfu wrote the article, and Pei Jiong's seal script was Xu Hao's eight-point official script. The writing style is correct, the softness and rigidity are moderate, and the brushwork is elegant. It is a representative work of official script in the Tang Dynasty.