The Zhengyi Daoist Lu: Registers Of Magical LawOver the years there have been several historic references to the Taishang Zhengyi Mengwei Falu (The Registers of the Orthodox Unity Covenant with The Powers Transmitted By Most High Lord Lao), which was said to be the original covenant that the First Celestial Master Zhang Daoling received in 142 A. D. on the Singing Crane Mountain in Sichuan from the Most High Lord Lao. As such, this book exists as a part of the original Celestial Master Daoist