A work can do many things at once, and it doesn't have to be just about the world, it could also be about photography, it could be about perception, it could be an exploration of the medium. It could be a document, it could be a visual poetry, and it could be a formal exploration all at the same time.
There's something essentially fictive about a photograph. That doesn't mean that if you understand that, and you understand how the world is transformed by the camera, that you can't use the limitations or the transformation to have an observation that is a very subtle perception of the world.
I realize that as I get more experience as I get older, my perception changes and that feeds the photograph.