I think we’re spinning wheels at this point. Best to you.
Well yes, because your formulation is absolutely useless and renders you unable to answer even the simplest questions about it, you are “spinning wheels” stuck in the mud of your own devising - and you will stay there - because you will not avail yourself of the physical understanding that would pull you out of the mud.
That is the fate of all who seek to explain physical phenomena via mystical means. It is useless and lead nowhere to no further understanding or discovery or application.
The truth is useful. Your theological musing that the brain is “spiritual” is useless.