Gravity is not matter, the forces are not matter. They are something else. When you blow the air, it carries with it something, matter in motion with kinetic energy. This matter exercises force on the surroundings.

Everything around is exercising force, every particle of matter is exercising their will on the interaction. Do they have a will? What is that intrinsic property that gives it its characteristics? Or are the forces an invisible flow that gives life to matter? The simple act of blowing makes the air particles exercising a push force into other molecules of air. And the other molecules are exercising force against the blow making it similar to an interaction of wills.

-Leynad