Ironically, it is the very power of art. Call it mystery, call it the subjective, call it beauty in the eye of the beholder. There are no real authorities per se in art. Even those who command and accept some role as art authorities can agree on very little between themselves, and that should tell us something. And this should come as some sort of comfort to anyone who is held back by feeling stupid about art.
Art is experience.
More or less. Whatever that can be for each of us. But whatever it is, it is definitely doable, and because it is the unique and mighty domain of individual expression, it is worth the time of day. The truth is that art is there for everyone. People don't believe this, but all they have to do is interface.