Thanks, Jeremy, but that's not what I was referring to. It's the word "essence" specifically that confuses me and, unless I'm mistaken, other Mormons too.
I know and agree. The word essence can and does get used loosely. I think the reason why this word has you a little tripped-up is because the word is defined with subtle and not so subtle differences in it's definitions.
Merriam Webster
1 a
: the permanent as contrasted with the accidental element of being b
: the individual, real, or ultimate nature of a thing especially as opposed to its existence <a painting that captures the
essence of the land> c
: the properties or attributes by means of which something can be placed in its proper class or identified as being what it is2
: something that exists
: entity3 a (1)
: a volatile substance or constituent (as of perfume) (2)
: a constituent or derivative possessing the special qualities (as of a plant or drug) in concentrated form ;
also : a preparation of such an essence or a synthetic substitute b
: odor ,
perfume4
: one that possesses or exhibits a quality in abundance as if in concentrated form <she was the
essence of punctuality>5
: the most significant element, quality, or aspect of a thing or person <the
essence of the issue>
— in essence
: in or by its very nature
: essentially ,
basically <was
in essence an honest person>
— of the essence
: of the utmost importance <time is
of the essence>
What I get out of this particular application of the word "essence" is the unifying and abundant qualities that all three entities of God possess.