Taishang Cave God Tiangong eliminates demons and protects the country. The author is unknown, probably dating from the Tang and Song Dynasties. Three volumes. The first volume pretends that Yuanshi Tianzun is preaching to Wuji Zhenren how to eliminate disasters and protect the country. The middle and lower volumes are based on the pretense of the Supreme Master to teach Taoism to Zhenren Yin Xi through the Lu Zhaike, and to persuade people to practice the Tianhe Zhai method to eliminate disasters and protect blessings. Original source: "Orthodox Taoist Canon" Cave God Book.
