Art : Functions

Non-Motivated :
1. Basic human instinct for harmony, balance, rhythm
2. Experience of the mysterious
3. Expression of the imagination
4. Universal communication. e.g. Rocks placed on top of a mountain.
5. Ritualistic and symbolic functions

Motivated :
1. Communcation .e.g. Maps
2. Art as Entertainment.e.g. Video Games.
3. Art for political change.
4. Art for psychological and healing purposes.
5. Art for social inquiry, subversion and/or anarchy. e.g. Graffiti
6. Art for propaganda, or commercialism

The functions of art described above are not mutually exclusive, as many of them may overlap. For example, art for the purpose of entertainment may also seek to sell a product, i.e. the movie or video game. One of the central challenges of post-modern art (after the 1970s), is that as the world becomes increasingly utilitarian, functional, and market-driven, the presence of the non-motivated arts, or art which is ritualistic or symbolic, becomes increasingly rare.

Source : Wikipedia