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.
Bose
Bose-Einstein condensates
brain/mind
cognition
consciousness
Einstein
gravity
KNOWING
mind
neurophysics
philosophy of mind
philosophy of science
physics
quantum physics
quantum consciousness
Quantum Unitary Field Dynamics
QUFD
science
spirit
theology
theology of reality
theoretical physics
time
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.
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!"