Trancendence
To see outside our selves, beyound the being whose eyes capture the everiday life. Art allow that the experience extrapolate the alnguage conventions and the conditioning we go through our whole lives. Those conventions are important even for the most basic of our survival but, at the same time, they close our eyes to the crystalline beauty of life.
Int the words of Aldous Huxley, in The Doors of Perception: "His perception is not limited to what is biologically or socially useful. A little of the knowledge belonging to Mind at Large oozes past the reducing valve of brain and ego, into his consciousness. It is a knowledge of the intrinsic significance of every existent. For the artist, [...] draperies are living hieroglyphs that stand in some peculiarly expressive way for the unfathomable mystery of pure being.