Physics says that rotation is the most efficient way for any round object to move through space in gravity. The human body is a tall, jointed cylinder so it should rotate to move. A cylinder with no joints rotates as a single unit. A jointed cylinder rotates and counter-rotates each side of joints in order to move in a straight line.
The rotation videos show you how the human body is designed to move through space using rotation and counter-rotation. Rotation increases complexity and sophistication in all functionality - physically and mentally. Rotation improves balance, speed, and power in all you do.