Xuan Gong Twenty Move Qigong 玄功二十訣 (玄功貳拾訣)
Xuan Gong Twenty Move Qigong 玄功二十訣 (玄功貳拾訣) , is a Qigong from Hua Shan School (華山), was taught by taoist priest Chen Xi Yi (陳希夷)in a long time ago. Xuan Gong Qigong is not famous at the past untill it was spreaded widely by taoist priest Choy, Ho Ching ( 蔡河清 ) in Hong Kong at 1970s.
It is demonstrated by Sifu William Wing Hung Yeung