In order to reach the level of taiji practice that integrates, you need to declare war against your own body. A dialogue between the mind and your own body must be initiated. After that, most of the work must be done by the body, not the mind.
—Master Chen Zhonghua at the New Hampshire workshop in Sept. 2013.
Do not believe your body does what you think it is doing! Your body has a mind of its own and is quite independent of you. It does what it wants and what it is used to.