One of 🇦🇺 leading artists of the 20th century Sidney Nolan said this about the painting. I just could add that it is the same with every art. Art is communication because it always carry a message: love, protest and many others. Yes it is pure as artist is purely concentrating on the work, wants it to be strong. It is difficult because in majority of cases it accepts no compromises. And it is wonderful because it touches the feelings, brains, you start to think. Every public relations professional seeks for a change. The change is done through communication. If your change can inspire artists for songs, paintings, sculptures, movies or plays, it is a strong probability you'll reach the results.