We understand it, and we don't. It's irreducible; it can't be summarized or described; we feel something we can't describe.
I feel very indifferent about this. It might be that I may not be looking at the bigger picture of things, or maybe that I would like things to be very straightforward sometimes, but I have never deemed a feeling of confusion that cannot be described "art" - if anything ever leaves me with a gap, I deem it unnecessary and go on about my day.
Am i wrong for this? Should I be looking for explanation in everything?
This is something I never really understood when someone could not really describe an emotion, especially when it comes to looking at those "abstract pieces"