Zhouyi Shentongqi is the earliest single crystal and is called the ancestor of single crystal. In addition, Bao Puzi is also a basic classic of Taoist Dante School. Taiping Jing and Old Xiangzi Jules are also the main classics of early Taoism. Huang Tingjing and The True Classic of Shangqing Dadong are the main classics of Shangqing Classic left, and Maoshan School also attaches great importance to them. Du Hewen is the main classic of Lingbao School and School. Yin Fu Jing and Chang Jing Qing Jing are also two very important Taoist classics that Taoist priests must recite. In addition, the Jade Emperor Sutra and the Heart Seal Sutra are also one of the daily lessons of Taoists.
Although the Southern Sect of Taoism is mainly composed of Fuyong, Zhai Zhi and Yi Ke, it also advocated three religions and one principle after the Northern Song Dynasty, and practiced inner alchemy. So famous works such as Wu, He and Four Hundred Words appeared. Taoism, the northern Sect of Quanzhen religion, advocates the unity of the three religions, the gathering of spirits and spirits, the understanding of nature, and the integration of Confucianism and Taoism. Focusing on the three classics of Tao Te Ching, Filial Piety Sutra and Prajna Heart Sutra, it advocates "filial piety and purity,