How many times must we practice the set movements everyday?

The important principle is moderation. The practicing technique must be correct in the first place. Some people say you must practice the whole set of movements ten times a day with one set lasting about 25 minutes. This only focuses on quantity and is wasting Qi and energy. It is contrary to the basic principles of Taiji succeeding in only making you sweat and reducing weight. It is not beneficial to the development of the internal force, internal organs or generally the body internally. Grandmaster Cheng Man-ch'ing has said, "I practice the mobilization of the internal force and Qi using the 37 basic movements every day. One set of movements lasts only 7 minutes." Practicing too much or too little is subject to whether it is practiced correctly or not. Utilizing my experience and following my practicing technique, students are encouraged to practice every morning and evening using about 5 minutes to practice a particular movement or posture (dividing each of them into 2 parts) over and over again. Those students who do so are likely to succeed.