I see it in maybe a majority of Tai Chi performances, even by people who are called "master."

At the very beginning of the form, they lose their balance, they throw off their center, by shifting their hips to the right as their left leg steps out to the left.

The purpose of Tai Chi is to maintain your balance and center at all times, both physically and mentally. When a teacher is instructing a student, he first teaches the movements, then he or she should coach students when they are not in alignment. Take a look at this video, then look at your own opening movement. Watch yourself in a mirror, then record a video. Then watch your teacher, and if he is making this mistake, give him a roundhouse kick to the head.

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