The phrase "real essence" means the true and essential nature or qualities of something or someone. It refers to the fundamental or most important characteristics that define its identity or existence. Full definition
«The transaction fees are going higher and higher, and [the] real essence of bitcoin lies in its use [as an] affordable currency.» (bitcoinmagazine.com)
But Suarez would argue that since the simple substances that comprise Leclerc's complex substances are complete substances in themselves, the substantial form arising from their complex interactions must exist in them as an accident; for a complete substance can be the subject only of accidents, like every other real essence. (religion-online.org)
A colleague introduced me to and helped me understand the real essence of dividend investing. (simplysafedividends.com)