Soul growth is your overall awareness. Meaning the more Soul Growth you have the more aware you are of things around you. I would also define Soul Growth in an identification purpose as a harmony between the body and the Soul. The body acts as a transmitter for information, ideas, and energies to be drawn in and absorbed from this third dimension and transmitted to the Soul, which eventually reaches the higher mind. In turn, the more Soul growth one has, the more of a heightened awareness level a person has. And the better your body becomes as a transmitter of this information that we have and identify as awareness from this dimension to the soul.