Lu (406 ~ 477) was the first Taoist reformer in the Eastern Jin and Southern Dynasties. Lu's character is virtuous and his name is simple and lonely. Wu Xing moved eastward (now Huzhou, Zhejiang). I learned a lot from my childhood and also from the World Expo. When I was a teenager, I studied Daoism. Although I am mixed with the world, I have always maintained my virginity and simplicity in my heart. Abandoning his wife in middle age, he toured Jiangchuan, visited Gaoshi, searched widely for lost Taoist scriptures and became a Taoist master in the south of the Yangtze River.

The reform of Taoism in Southern Dynasties mainly focused on sorting out Taoist classics, developing Taoist teachings, eliminating Taoist canon and reforming Taoist organizational forms.

Buddhism has been widely spread in China since the Eastern Jin, Liu and Song Dynasties. A large number of Buddhist classics have been translated and introduced, Buddhist monasteries and monasteries have been generally established, and more and more scholars have become monks and studied Buddhist scriptures. Even Lu himself was deeply influenced by Buddhism, thinking that "keeping Buddha as Qin, jade emperor in Taoism, and consistency in Taoism." The development of Buddhism has had a fierce influence on Taoism. Buddhist classics can be obtained from the western regions in India and widely spread through translation and rewriting. However, Taoist classics can only be produced in the form of the imperial edict of the emperor's father and the arrival of the gods, which greatly limits the development of Taoist teachings. Therefore, relying on Fuxi's writings, rewriting the Buddhist scriptures and copying the prescriptions of the previous generation, such as medical skills, divination, divination and prophecy, became the main source of materials for Taoist priests in the Eastern Jin Dynasty to compile Taoist scriptures. A large number of Taoist classics derived from this are confused with truth and confusion. In the late Eastern Jin Dynasty, a large number of new classics, such as Shangqing, Lingbao and Huang San, appeared, which enriched Taoist teachings. However, in the process of spreading the classics, various Taoist schools banned each other, and many Taoist classics were unknown in origin, without unified ownership, and were lost and scattered. Lu, a Taoist scholar, paid attention to collecting classic documents in his early years. Volume 3 of Xuanpinlu records that he has been to the ruins of Nanzhen town in southern Hunan and Jiuyi. "Going west to Emei and Xicheng, seeking for lofty heights" has laid a solid foundation for sorting out Taoist scriptures, distinguishing fakes, examining the origin of mirrors, compiling classics and classifying them separately. In the 14th year of Yuanjia (437), he published Lingbao Jing and compiled Lingbao Mu Jing.

In the third year of Taishi (467), Lu got the manuscripts of Yang and Xu Zhenren of Shangqing School and the Great Classic of Bao Jing, and sorted out Shangqing Classic and san huang. In the seventh year of Taishi (47 1), he wrote the Catalogue of Three-hole Classics, and recorded the Taoist Classics and Daofa 1228 volumes. At the same time, it created the classification method of Taoist classics, which has far-reaching significance in the history of Taoism.

The three caves refer to the true sutra of the cave, which was written by Tianbaojun, the founder of the cave in Jade Qing Dynasty, also known as the Ming Sutra of the cave. The True Classics of Dong Xuan Department, published by Ling Baojun, the founder of Shangqing Dong Xuan, is also called Dong Xuan Ling Bao Jing. Shenbaojun, the founder of Taiqing Cave, published the True Sutra of the Cave God Department, also known as Huang San Cave Nerve.

Four auxiliary means too mysterious, too peaceful and too clear, whether it is one or four.

Twelve categories refer to three caves, which are divided into three parts: words, spells, jade tricks, spiritual diagrams, scores, words, prestige, methods, various techniques, biography, praise and performance.