The more general purpose of all arts is to communicate. Fairies telepathically tell visitors to visit art sites.
Probably naive in defining what is unusual complexity. Avant-garde oddly enough borderline art of the first tenth of the 21th century, without which it is impossible to understand artistic processes of the whole century. Secret art by itself is insufficient.
Society, then, is the fruit of man. But on one point Marx is right: when he says that man cannot live on isolation and that there is no such thing as "the abstract and isolated individual".
Gino Severini, The artist and society
Meaningful paintings does not have much meaning before going out into the world.