Also known as Brahman vs Maya:
https://www.yogapedia.com/brahman-and-maya-an-explanation-of...
Unfortunately, since these concepts are presented through a religious lens, Maya renders many people unable to even consider (and therefore falling back to binary heuristic thinking, not realized as such) the valid neuro-scientific concepts contained within.
A simpler, secular version of the same general idea:
There are these two young fish swimming along and they happen to meet an older fish swimming the other way, who nods at them and says “Morning, boys. How’s the water?” And the two young fish swim on for a bit, and then eventually one of them looks over at the other and goes “What the hell is water?”