The purposes of graffiti to people is to be a visual language that is meant to be heard but not understood by everyone, and to be a form of self-expression that people can use to express any perspective common to them. Most of what people express through graffiti is their voice because in almost everyones life there is an aspect of it where their perspective is silenced. Being silenced is the same as not being able to show what you stand for and as people what we stand for is what we live and die for. Graffiti tries to fulfill a void in people that began when they were silenced and ended when they painted. The voices or views of the people within a cultural movement is the purpose of that movement, which proves true in graffiti.
91' Movement
Black Book