Shangqing Dadong Zhenjing

"Shangqing Dadong Zhenjing", also known as "Thirty-Nine Chapters Sutra", was developed from "Huangting Jing" and is a representative classic of the Shangqing sect of Taoism. The Shangqing sect calls it the first of the three wonders of Taoism. It is said that if you get the "Dadong Zhenjing", you can become an immortal without the need for golden elixirs and read it thousands of times. Therefore, it has been taught continuously through the ages. Naturally, there are different versions. Generally, the six-volume version of "Shangqing Dadong Zhenjing" and Chen Jingyuan's "Shangqing Dadong Zhenjing Jade Jue Yi" are the authentic versions.