’Art’ is only a word and shouldn’t be what you’re trying to define. The fact that language has given weight to the term means that it has been perverted for generations. It imposes arbitrary barriers on itself. A new word is needed, that shows an understanding of the connectedness of writing, music, drama and the visual arts. Why call some sounds music and some art? Why call some words literature and some typography? It’s all the same - “Art” is just the only form that is currently trying to realise that. And where do you stop? How do you brush your teeth? And why do you do it in that way. Because you have something to say.
But the truth is that we cannot say anything, because anything created immediately stands alone from the creator. His intended meaning is lost, and the viewer’s imposed meaning is all that exists beyond the physical ‘art’ itself. Language is based on convention, and so is ‘art’. In China, minor chords are happy. Red is passion or anger. So while it cannot theoretically be defined, strive for a definition we will. But in an attempt to understand we will only breed incomprehension.