Shifting your mass about: Start prone on the ground with your face up. Now press your behind to the ground and check if you can move your legs and upper body more easily from that central pivot point. Now press the shoulders down or one shoulder and coil your body to that point as if you are a baby. sleeping on it’s side. Now do the same thing with one ankle and your behind and see how you can gain freedom in the upper body using this method of mass shifting and pivoting. Try to move without attacking the gravity but playing with it and using it to your advantage. If you are coming down from a sitting position you can use that force to turn from back to belly using breath and a small tilt of the hips. another thing that will help you reach this freedom is to stand with heels touching and feet to the sides on the same line. Try to balance as you do this and realx. This frees the hips and is a lot of fun to wobble around.