This is the hand-elbow relationship. This method ensures that the hand and elbow are connected on a line so as to be useful in conducting energy.
hand and elbow

The hand will have the ability to issue and withdraw power when it is properly aligned with the elbow. This is a fundamental exercise that will enable future improvements in taiji push hands. Without the hand-elbow alignment and connection, indirect power cannot be developed.
Presenter: Chen Zhonghua Length: 38 min. In: English & Chinese Year: 2013 Difficulty:2/5 At:Daqingshan