Indeed, there are quite a few things that DO require clarification. We'll do it in "baby steps", so people can keep up

... LOL... Here we go...
The common "vulgar" spirits (ethanol/SV and others) are NOT the "Spirit" that I'm talking about.
It is the Ultimate, Omnipresent, All-Forming, All-Nourishing and All-Permeating Spirit that I'm referring to.
It is somewhat comparable to "The Force" in Star Wars, a much better comparison than Vodka
But I DO understand the reasons for this fundamental error which may have lead you to this fundamentally flawed conclusion.
And I intend to address this problem at a later point, because we really need to
"separate the wheat from the chaff"
I think herein lies the fundamental flaw in your world view.
Spirit is the
"Universal Ocean", the
"Sea of the Philosophers". In fact, it is
both the Drop
and the Ocean, simultaneously.
Everything
"flows" from it,
"returns" to it and essentially IS it. It can never "die" because it was never "born". It permeates EVERYTHING and is not "bound" to this or that Universe or Manifest Reality Construct.
Conversely, "Soul" is comparable to an "Envelope" for Spirit. Not unlike the "Philosophical Magnet" or the Alchemical "Prima Materia", which is dual and composite in its nature. More on this in future posts.
There are many "Souls", each with their "different programs", and they are all formed or "condensed" from Spirit and animated by it.
"Souls" are created/generated and have their Beginning AND their End in "Time". In some belief systems, they are even tradable commodities
When a Soul "dies", it is dissolved into the Spirit Ocean, just like everything born of time. Elsewhere, I intend to elaborate more on "Liberated Beings" and how they are essentially "Soulless" in their Natural State.
All sorts of
"gods",
"angels" or other demiurgic/archontic so-called
"divine entities" (including various
"luminaries") are no different from humans
in this regard. They ALL have their beginning and their end in "time".
What you refer to as "Soul" is basically Spirit that is fixed/focused inside a temporal construct, which can be more or less subtle.
Just like the "Quintessence" of Alchemy is nothing more than "Spirit made Flesh". Or "Spirit Incorporated".
Also, "Quintessence" does NOT refer to "Soul". This is a
culturally hijacked/appropriated AND
totally incorrect misnomer.
In fact,
"Quintessence" refers to what is commonly called "The 5th Element", the Ultimate Sub-Stance/Essence/Est-Ens of All Being, i.e. Spirit.
So in a sense, you are correct, healing DOES come from "Quintessence", except it's not what you believe it is.
Yet another fundamental flaw in your grasp of the underlying metaphysical "mechanics".
"Soul" is merely a Temporal Construct, an
"envelope" for Spirit. Spirit, however, has no need or requirement to
"evolve", because it is All-Ready perfect, always and forever, in perpetuity and infinity.
A more
"Evolved Soul", just like a
"Multiplied Stone", simply indicates a higher and more
structurally coherent "concentration" (and potential ex-pression) of Spirit.
The more Spirit is involved, the more the "ID Markers" and the "Programmed Limitations" of the
"Soul Construct" are
"dissolved" and the more
"Universal" or
"unspecified" this "Soul Container" becomes, until it (the "Soul") is itself "dissolved"
entirely, i.e.
"dies to this world" (or
"vanishes from the flask").
It ALL begins and ends with Spirit, which in itself has no beginning and end, NO "Alpha" and NO "Omega".
The entire "Work", as the saying goes, is
de-facto accomplished by "Our Mercury" (Spirit) alone.
Going through and appearing as various manifest sates, sure.
But there is only ONE matter. There is no "two" or "three" or "more" of anything, except as transient mental constructs.
I hope I have clarified
some of the more fundamental misunderstandings regarding the metaphysics underlying those mental/linguistic constructs.
But this is
exactly the type of mind-stuff we must clarify & rectify when dealing with "information" allegedly received from various Demiurgic/Archontic/etc. Entities.
Note: While the MANNER of formulating my posts
on this specific thread is somewhat satirical to a degree, the SPIRIT underlying what I'm posting here is as legit as they come

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Are we any closer?