May I ask if you wrote that, or are these someone else’s words?
Usually I don’t read over-long posts that ramble (though I’m guilty of writing some myself), but you got me. I did start skimming towards the end because you repeat yourself. (You know they say, for ever word you can cut out you gain a reader). 
Also, I wouldn’t use your ‘framing,’ but when I boil those words to their essence, I see where you’re coming from. I would disagree with you that, it’s a matter of dynamic balance and not one over the other.
The one over the other?
Broadly speaking like this, but I would suggest, “live in the moment fully aware of tomorrow” and that your today will direct where you’re at tomorrow.
What is this invisible? The many layers within biology and matter that we are mostly unaware of? That is the physical insides of us and our biosphere?
How about adding an awareness of history, that is evolution. A visceral awareness of being a creature with hundreds of millions of years worth of development within my being. “I am an element in the flow of creation”. That sort of thing.
The invisible attachments of feelings and emotions to our mothers, children, family, loved ones, friends, humanity in general?
The invisible of those various voices alway catching away at you, describing what they are seeing and thinking?
“the visible is just a shell” I have a real problem with.
We are real beings, the product of real physical biological processes unfolding over countless generations. There is nothing imaginary about us, and the fact that we die and disappear doesn’t change the fact that we were real physical fact, during our living days.
Our consciousness and souls are the inside reflection and energy of our physical being’s experience.
Sounds to me like “mindful living”
I think we need some definitions. We have our “conscious” and our “subconscious”
I would classify both of those under the heading of spirit, or “Human Mindscape” -
Then we our body, the biological creature that is us.
Within that body we have all sort of things happening, including hormones, at times raging hormones, and they have a direct impact upon the mind of the body.
What is the mind. From an evolutionary biological standpoint, your mind is the inside reflection of your body, its physical functions, its senses and it navigating its physical environment.
The difference between our body and our mind, is the same difference that exists between lightening and thunder.
I dare say I kinda resemble that remark. Although, not so comfortable with the “false spiritualist” by nature we’re all spiritualists - I think it’s more a question of intellectual honesty, personal integrity, good faith curiosity - as opposed to the self-serving mindscape that bends everything according to his convenience.
What you’re calling a “false” spiritualist, I could just as easily call a false human, as opposed to a person with integrity.