The hand must have two functions in Chen Style Taijiquan Practical Method.
- Fixer. The hand is used to catch the opponent. In this sense it functions as a hook, rope, or vice. It only needs to apply enough strength to affix the hand on the opponent.
- The hand acts as a CV joint to deliver the power from the body. This power can be a push or a pull.
- The hand moves after contacting the opponent, resulting in inability to affix to opponent.
- The hand applies power in an attempt to fight the opponent. This will result in not having enough power. This stops the power from the whole body from going to the opponent.