Theory and Context: Banksy.
"There is this idea that people who write graffiti are just frustrated scribblers who couldn't make it in the art world, but that's not really the point. It's better being outside anyway. Bus stops are far more interesting and useful places to have art than in museums. Graffiti has more chance of meaning something or changing stuff than anything indoors."-Banksy.
(Banging Your Head Against a Brick Wall)
Banksys' view on street art (graffiti) having more meaning when it is visible to the public in everyday life is one that really resonated with me. We are accustomed to works of art being confined to the traditional 'white cube' gallery setting, some of the institutions charge you for the privilege of viewing the work in this domain.
For me, seeing a piece of graffiti in a public place (probably on the way to uni or work) would have more meaning because it was part of my everyday life, I experienced that; it made me think about why and how it was there, which is pretty remarkable.