The strange stone texture on the front of Yingbin Stone is like a natural landscape painting, which is consistent with the artistic conception of Wangwu Mountain praised by Li Bai. On the back, there are "Ten Monuments to Heaven", and the calligraphy is Sun Zhongshan's style. Friends who have seen Journey to the West all remember that there are many kinds of immortals in it, and there are also many places where immortals live. They call these places "a land of bliss". Water curtain cave in Huaguoshan is a "land of bliss". Now we use this word to describe a place with beautiful scenery. Although the words cave and blessed land are often used together, cave and blessed land are actually two different things. Sima Chengzhen, a Buddhist in the Tang Dynasty, put forward the theory of caves and blessed land, which divided the world famous mountains into ten caves, thirty-six caves and seventy-two blessed lands. Wangwu Mountain ranks first among the top ten caves, known as "the first cave in the world". Cave-in-the-sky means that there are caves in the mountains and famous mountains and scenic spots. Hua Renkui, a professor at China Academy of Sciences, explained that a paradise is an environmental aesthetics, a place with good mountains, good water and good air.