Within the thirty six taiji qigong exercises ( Sanliu Taiji Qigong) that are taught by Laoshi Keith Ewers of the LFIAA. There are many taiji qigong exercises that involve rocking or swaying the whole body in a forwards, backwards and a side to side motion, this swaying action has many health benefits like improve the blood flow into the four extremities, strengthening the individuals legs to help them improve their balance, but this swaying motion can also have a great effect on soothing and calming the individuals Nevous system, allowing for each individual to fully relax into their own being, releasing both mental and physical tension, anxiety and stiffness out of the whole body.
If we take a look at nature (Xing) we can see this rocking and swaying motion being applied every day, for example when a gentle breeze blows against a tree, the tree begins to sway gently back and forth and when the wind stops the tree returns to stillness. Hence this is the action that each individual performs when they practice the thirty six taiji qigong swaying or rocking exercises, gently stimulating the energy (Qi) to flow smoothly through the Nevous system and energy pathways (Jing Mai) of the body, allowing the body and mind to become calm.
As I have already mentioned above there are basically two methods of the swaying or rocking exercises that are practiced. This is the front to back direction or vice-versa, plus the side to side motion. The swaying of the body in a forwards to backwards direction allows the qi to to move to the front of the body which includes the face, chest, abdomen and backwards into the back & spinal column, back of the head and hips. Whereas the side to side direction allows the blood and Qi to flow into the side of the head, neck, torso, hips. Obviously the blood anQi will flow naturally into the four extremities. In time once the individual has been studying and practicing the thirty six taiji qigong exercises for a long time they will begin to experience various sensations of their Qi moving around their body, especially when they are practicing a swaying or rocking taiji qigong exercise.
The key to developing a strong sensation of QI movement within the body is to maintain a relaxed body and when practicing any of the swaying taiji qigong exercises to make sure that the over-al motion is smooth, slow and steady. There should be no sudden jerking of the body, were the body suddenly speeds up and then slows down. The whole body motion must be maintained at the same slow speed in both directions, this will allow the individual to fully relax and calm the nervous system.