Ten Celestial Stems

This video was filmed in Taipei about 30 years ago, and demonstrates a version of the BaGua Ten Celestial Stems exercise as taught in the Hong Yi Xiang line. It differs in a number of ways from the set as taught to me by master Zhang Junfeng, but that is not important. I am posting it to give a general idea of the depth of the stances and exertion required to perform the sets and obtain any useful training from them.
The level of skill demonstrated is beginning intermediate. There are numerous deficiencies in the performance - for example the lack of foot movement - the feet should move as if grinding something underfoot, and power generation should be from heel to hand and heel to crown. No matter - the point is that these exercises require deep stance work, exertion throughout the body for each movement, and understanding of the type of mechanical movement that each "stem" is supposed to train.