The body is like a million pressure sensitive key piano

brainregions

If there are a million chemicals/neurotransmitters in the body,
Then who/what is the player of this hardware?
Is it prana? And the prana is controlled by the mind?
The mind is controlled from the intellect/knowing?
And then there is the blankness of deep sleep?
(using terms from the vedantic model)

GROSS:
So there is a physical form in the physical world.
SUBTLE:
There is a pranic form in the “pranic world/astral world”.
There is a mental form in the “mental world”.
There is a intellect form in the “intellect world”.
CAUSAL:
There is deep sleep dormancy of the seed, “causal world”.

So influences are transmitted from:
Deep sleep -> Intellect -> Mind -> Prana -> Physical body.
Through the 5 koshas (vedantic term).
So life force seems to be progressively cut off,
Until only one personality finally manifests in/as experience.

There are also various thresholds for activation in the brain areas.
Levels of activation: Say from RED/YELLOW(highest) to GREEN(moderate) to BLUE/VIOLET(lowest)
Like for instance, in PTSD, tiny cues may cause a lot of unpleasant areas to activate.
And if you repress something, then only a very high stimulus will make that portion activate.

brainnormalvsconditions

Different planes, death, and enlightenment

Our different bodies exist in different planes:
# Physical -> Astral -> Causal -> Spirit
# Gross -> Subtle -> Causal -> Source
# Assiah -> Yetzirah -> Briah -> Atziluth (From Kabbalah)

Death happens at different levels.
Physical death -> Astral death -> Causal death -> Merger into Source
# The source first empowers all the bodies in an inbreath like process, which is the sequence during the birth process:
Causal vessel/body 1st -> then Astral vessel/body 2nd -> then Physical vessel/body 3rd.
# Then the source is disengaged, an outbreath like release happens, and dying happens one by one.
First the Physical vessel lets go -> Then astral vessel lets go -> Then causal vessel lets go.

Birth and Death at all levels is the play of the spirit/source.
It is the breath of spirit.
# Spirit inbreath -> Becoming Maya (the various planes and bodies)
# Then Spirit outbreath -> where its lets go all the illusions and returns to true nature.

In Enlightenment:
You trade the drop for the ocean itself, which is [the ground of intelligence, quantum field], from which all drops emerge.
To be enlightened is to know/realize at your being that you are the source itself, but operating through that drop.
This realization then maximally empowers the drop to serve the higher will of the field.