The 48 forms of taiji quan each exhibit special features of their heritage - the spirit of relaxation, softness, smoothness, circularity and continuity. Practice calls for a quiet mind, a relaxed body, consciousness-guided movements, and a combination of hardness and softness. The 48 forms mostly derive from Yang style taijiquan, but also borrow from strong points and techniques of other styles. These exercises are good for beginners, for those who have already learned some taiji quan, and for those intent on improving physical fitness and prolonging life.