Liu Zi Jue regulates and controls the rise and fall of Qi (vital energy) through the inhalation and exhalation of six sounds. The exercises feature slow, gentle movements that are safe and easy to learn and are suitable for people of all ages and in all conditions of health. The routine strengthens the liver, heart, spleen, lungs and kidneys, thus helping to balance the energy and functions of the internal organs, and has also been shown to have a calming effect and to alleviate stress. Each routine is described step-by-step, and is illustrated with photographs and key points. The authors also point out common mistakes and offer advice on how to correct these.