Art (n.) is a form of nourishment (of consciousness, the spirit).
Art (n.) is a genre with the capacity to evade interpretation and make us nervous. Interpretation tames art.
Art (n.) is devoted to lowering the threshold of what is terrible. By getting us used to what, formerly, we could not bear to see or hear, because it was too shocking, painful, or embarrassing, art changes morals.
Art (n.) is not only about something, it is something.
Art (n.) is understood and valued as an 'absolute' activity. So long as that is the case, it will be a separate, elitist, 'priestly' one presupposing the existence of a relatively passive, never fully initiated, voyeuristic laity which is regularly convoked to watch, listen, read, or hear and then sent away.
Art (n.) has the capacity to make us nervous and interpretation is an attempt to tame that nervousness, to make it manageable or comfortable.
Art (n.) likely began as incantatory, magical, an instrument of ritual.