The video below shows the "Silkworm Hands" which is the fundamental movements throughout the Heaven and Earth Forms. "Silkworm Hands" are done by circular movements of the wrists, finger joints and palms. Demonstrated by Xun Shen Tang (China), disciple of the13th Lineage Holder Grandmaster Fu Wei Zhong.
This video is taken from the complete DVD of Emei 12 Forms, produced by Sunyata Publishing (Hong Kong), with the permission of Grandmaster Fu. DVD of 12 Forms (in Chinese only) is available for purchase.