How to do the downward posture in the traditional Yang Style 85 Taijiquan

"The lower potential original guide standing head snake, and like a butterfly under the flower" means, 'the lower potential' to be as soft as a snake, butterfly as light, but now being a lot of people to do a lot of crime, the reason is that the body is not loose, and don't know the sub-definition of real and imaginary, now simple Yang's Taijiquan lower potential of the essentials to say a few words: from the beginning of a single whip, the right foot flared, center of gravity, the right! Sit to bend the knees and loosen the hips, the right arm to the right to have a sense of leaning, the left arm back to relax, the left hand crotch protection, along the leg wear out, the center of gravity does not panic, with the left hand wear to the front, the crotch to go under the arc (this is the key to the lower potential to do well), the head to lead the force, the waist should be up, the back should be drawn up!