Master Li Cheng Yu was the 23rd generation Master from the Longmen School. Her Taoist name was Cheng Yu. Cheng Yu means pure jade. Nobody remembers her original name. She was born in 1872 and passed away in 2002. She became a Priestess at the early age of ten. Master Li devoted her entire life to preserving, developing and promoting Taoist religious practice, Taoist healing arts and Taoist wisdom. She was a living manifestation of kindness, mercy and conscience. She was extremely dedicated to the Taoist community in China and to internal alchemical practice.

Many Masters from both Taoist and other schools in China traveled long distances to visit with her. She also had many students that came to her from all over China. At the age of six, MasterYun Xiang Tseng(Chen) was chosen to study under Master Li Cheng Yu at Wudang Mountain. He stayed there for ten years until she sent him to the United States in 1991 to share this ancient wisdom and healing art.

Master Li's steadfast wish is for the renovations to continue at Wudang Temple and to preserve the spiritual gems of Taoist culture. Master Chen continues her legacy through his support of the Monastery in China and in his efforts to construct the first Wudang Monastery in the United States.