Newton's third law of motion explains that for every action, there is an equal and opposite reaction. Its the same for the human body, for each action that we do our body balances out the forces within. From a conceptual standpoint, Newton's third law is seen when a person walks: they push against the floor, and the floor pushes against the person. More examples would include riding a bike, swimming etc. When the human system doesn't have spatial awareness and does not know to balance and counter, then the system is threatened which happens in case of Cerebral Palsy, the muscles go into a spasm trying to protect the body by opposing the gravity. Movement lessons help in restoring the body’s natural response to the environment around by teaching the brain to encounter healthy reflex reaction.