The keyword/phrase "essence" relates to, and is part of, the classification(s) listed below, as used in the text or auxiliary documents of the QUFD website and in Father Jerome's scientific writings.
philosophy of mind
philosophy of science
Quantum Unitary Field Dynamics
theology of reality
The GENERAL CONTEXT of such use is:
The term refers to...well, we could say, anything, in that the essence, or reality, of anything, is it's existence, and Jerome's works are entirely about the realities of existence, of anything and everything.
Father Jerome's DICTIONARY of KEYWORDS/PHRASES used in his scientific writings and at his QUFD website
Father Jerome's PSYCHOSOCIOLOGICAL DICTIONARY of Terms/Phrases used in Monograph III of his QUALIA Series
Father Jerome's SPECIALIZED DICTIONARY of KEYWORDS/PHRASES pertaining to Bose-Einstein Condensates of Non-Matter and Incorporeality, as used in his Works, in QUFD Physics and in the 'QUFD Textbook' Website
Also see Father Jerome's BLOG, for info about his latest Book,
"God, Lucifer and You! A ScienceBook of Quantum Physics and Reality, for 5 year old Kids and Adults!"