Tai Chi is the personification of this. It helps the individual to focus, to recognize and to strengthen body, mind and attitude. The practice encourages discipline. One learns a series of graceful and flowing movements which are both challenging and rewarding, hence the practitioner is inspired to do them routinely. At first, it's a hobby, soon it's a habit, and eventually you can't live without it. As it becomes a part of your life, the discipline spills over into other areas. Many people have used the practice as a substitute for other, less healthy habits.