The role of the artist is to reveal the soul (that which is incorporeal) upon the surface of this world. Every artist is a channel. And every person is an artist. Some of us are simply more aware of it than others. Critique of art is not only useless, it is damaging. Art is an expression of self. It is the soul played out upon this physical world. And so, you can no more critique art, than you can critique the human soul. That is why (beyond simple technique that may enable an artist to further express their perspective) I do not believe in art school, for art and school are a serious contradiction in terms.