That’s the contention of Wynyard Baptist Church in Sydney, Australia which has banned its members from attending tai chi chuan classes.
The argument is simply that the discipline, with its relationship to Taoism and Buddhism, is incompatible with Christianity. One commenter responds to this Asia-Pacific News brief with the following:
Tai Chi promotes worship of “chi” and “shen” (energy and spirit). It involves emptying your mind, so as to be filled with these other “energies”, which are really harmful spirits or demons. […] I congratulate the Wynyard Baptist Church for taking a stand against pagan superstition and I wholeheartedly stand with them.
Now, if you’re a Western Buddhist, a Christian, and/or a tai chi practitioner, you’ve probably figured out that this stance doesn’t hold up, that all of these things can healthily complement one another. Too bad Wynyard’s congregation won’t get to learn for themselves—not least of all because the class was designed for the congregation’s seniors, in part to help them manage arthritis pain.