The first thing that you have to learn about chi kung (qigong) is the use of mind, not the physical movements.
There are many forms of chi kung in existence. All of them, without fail, involve the control of the vital energy, known as chi (qi), in your body.
When you are performing the exercises, you learn to use your mind to control the flow of chi. Your arms, legs and other parts of the body may be used to help in the process, but they play only the complementary roles. It is for this reason that, in fact, while many forms chi kung are performed with physical movements, some are motionless.
You can also do it by using a variety of postures -- standing, sitting, or lying on your back.
Tai chi is a form of chi kung, so is Taoist sitting meditation.
Since the performance of chi kung hinges on the use of mind, its improvement on the vital energy is reflected not only in better physical health, but also clarity of mind and spiritual enlightenment. If you practice the exercise regularly, it will enable your body and mind become functionally younger. In this aspect, chi kung has been used as a means in the East to stay healthy and achieve longevity.
So when you're seeing someone doing chi kung motionless, do not assume that he's 'resting'. His body could be working very hard without your knowing.
