The answer is: There is only one force. And this force is intelligent, it's consiousness. This force holds matter into place. it presses from outside in on the particles.

Particles aren't actualy particles, they are slower vibrating energy.

Any way it's naif to believe that gravity is a sort of magnetic field causes by one central magnetic particle. 

Particles are moving because of the pressure of the force. They would like to escape the pressure and tend to 

seek shelter with one another. The movement prevents this to succeed. That's why they keep on turning around each other. They want to unite but movement prohibits this.

 

To unify the electromagnetic, weak, and strong interactions of forces with gravity. That's the question. If we would answer this we would have a theory of everything