The name of the post is The Nature of Gravity and we're not getting far with finding much of the 'nature'. However, numerical Analysis can let us build numerical structures that shed some light on matters concerning nature. Gravity is about mass and the two prominent natural units of mass will be the proton and Planck masses. One exists and the other seems all about making the lawsthat govern the World we know. Let's look at the proton.
Much is made of the connection of Sun and proton. Take the following formulas.