An all-encompassing universal medium, made of ‘real’ matter particles, fills entire space outside ‘basic 3D matter- particles’. It is a homogeneous, isotropic and self-stabilising multiple entity. Because of its inherent compression, it squeezes all ‘basic 3D matter-particles’ by direct contact. This all-around push action on basic 3D matter-particles by the universal medium is ‘gravitation’. The strength of gravitation is proportional to the extent of the universal medium, away from the point of action. The extent of the universal medium on the outer sides of two basic 3D matter-particles is always more (with correspondingly higher gravitation) than the extent of the universal medium in between them (with correspondingly lower gravitation). Greater pushes from outer sides and lower pushes from in between compel basic 3D matter-particles to move towards each other. Cause of this motion appears as ‘attraction’ between basic 3D matter- particles. We interpret this phenomenon as ‘gravitational attraction’ between the particles. ‘Gravitational attraction’ is a minor by-product of separate gravitational push-actions on each of the basic 3D matter-particles. Magnitude of gravitational attraction between two macro bodies is the resultant of gravitational attractions between their constituent basic 3D matter-particles. It is the differences in the extents of universal medium on either side of constituent basic 3D matter-particles that produce gravitational attraction between two macro bodies, rather than shadow effects on each other.
