Lingfei Jing is a Taoist scripture that mainly explains the method of meditation. There is a volume of "Shangqing Qionggong Lingfei Liujia Left and Right Talisman" in Jindao Zang. "Hanwu Neizhuan" states that this sutra is used to ask for fortune and fortune, to live forever, to drive all spirits, and to serve ghosts and gods. "Ling Fei Jing" is the most famous small regular script with no name handed down from the Tang Dynasty. Yuan Jue of the Yuan Dynasty and Dong Qichang of the Ming Dynasty both wrote for Zhong Shaojing of the Tang Dynasty. "Ling Fei Sutra" has round and vigorous writing style and exquisite font. Later generations often used this as a model when they first learned Xiaokai.