ESSENCE By N., Pam M.S. - April 7, 2013 Philosophy. The presumed reality at a things core that makes it what it is and not something else. ESSENCE: "The essence of a human being makes us different from every other mammal." Related Psychology Terms METAPHYSICS ESSENTIALISM ACTUAL ROLE THERAPY APRIORISM FECHNER, GUSTAV THEODOR RATIONALISM N 1 NATURAL LAW THEORY PSYCHIC REALITY PARADIGM CLASH Cite this page: N., Pam M.S., "ESSENCE," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/essence/ (accessed December 12, 2019).