It is presumed that all matter {comprised of particles (possessing energy and mass)}is in a state of agitation (random oscillations including sinusoidal frequencies-waves).
If true, some particles could give up their energy (due to collisions with other particles) and slow down in to some form of spin (rotation about an axis passing through its center of mass).
Any spinning body tends to be stable (less randomness of agitation(vibrations)).
This means a temporary vacancy (empty space) surrounding the particle. This vacancy now becomes available for neighboring agitated particles-which now start occupying the available space-which is what appears as if they are "attracted" by the spinning particle. This is what is "mistakenly" called "Gravity".
Good Answers: