That mysterious force is simply the relation of matter in tyme. Gravity is a mathematical formula, created by Newton, to describe the relation of the planets in their orbits. Al Einstein explained that objects are free falling in time and space, but that time and space are curved around large celestial bodies, hence the planets orbit the sun, the moon orbits the earth. Of all the aspects of relativity, Einstein's concept of gravity seems the most ignored. While many in science have sought the elusive graviton, few seem inclined to apply the theory of free fall to general science.
Matter protrudes into tyme.
This protrusion displaces and compresses tyme. The more massive the matter, the greater the compression. The nearer to the matter, the greater the compression. This is what is called the curving of time and space. It is this compression and displacement that have given the misconception called gravity.