How did Yang Junsong spread the school of Feng Shui situation?

Huang Chao mutiny, the fall of Luoyang, Yang Junsong secretly fled Chang 'an with the imperial Feng Shui cheats. After he fled to Jiangxi with his servants, he began to give lectures and devoted himself to the study of Feng Shui for more than 20 years, and wrote many famous Feng Shui works: Yi Long Jing, Han Long Jing, Qingnang Zhengqi, Tian Yu Jing, Yu, Hua Jia Tu, Si Fen, Li Zu Fu and Boshatu. There are many apprentices in Yang Junsong, most of whom are in Jiangxi, forming the "Jiangxi School". His apprentice, Zeng Wenxian, and his two disciples, Cai and Song Dynasty, were both famous Feng Shui masters at that time. Yang Junsong was from the Tang Dynasty. He was brilliant as a teenager. At the age of 20, he passed the imperial examination and entered the imperial court as an official. He is in charge of the geographical affairs of Lingtai, that is, the planning and layout of palace buildings and important temples, and is responsible for observing astronomical phenomena and presiding over royal sacrifices. Huang Chao mutiny, the fall of Luoyang, Yang Junsong secretly fled Chang 'an with the imperial Feng Shui cheats. After he fled to Jiangxi with his servants, he began to give lectures and devoted himself to the study of Feng Shui for more than 20 years, and wrote many famous Feng Shui works: Yi Long Jing, Han Long Jing, Qingnang Zhengqi, Tian Yu Jing, Yu, Hua Jia Tu, Si Fen, Li Zu Fu and Boshatu. There are many apprentices in Yang Junsong, most of whom are in Jiangxi, forming the "Jiangxi School". His apprentice, Zeng Wenxian, and his two disciples, Cai and Song Dynasty, were both famous Feng Shui masters at that time.