I’m not relating this to union with God, or whatever. It’s more trying to understand the functioning of sense-consciousness ( see the OP ), which seems inherently to involve subject and object, or discrimination ( the vi- prefix in vinnana ). And then trying to relate this to references like the one in the Bahiya Sutta, “when there is no you there…”
Yes, I’ve found that increasing attention on one aspect of experience tends to reduce attention on others - a bit like peripheral vision. But there is still attention, and therefore still an object of attention, or an object of awareness.