finding your centre- body balance(warm up)

Exercise1
stand with your feet apart at shoulder length, mentally divide your body into two.
top half and bottom half.picture your waist to be the central axis.
mentally shift all your body weight to the bottom half. feel the stability at bottom and your top half resting over it, almost as if its floating . then in one go, let your top body fall.

Exercise2
stand with your feet apart at shoulder length, mentally divide your body into two. left and right.
arch up your hands in a peak type formation. picture as if a thread is passing through the joinary of your palms through your navel down to the ground. mentally shift your weight from one half to another as you oscillate from one side to other. find your balance.