I think graffiti is part of Berlin culture. You think about what the Berlin wall meant and how visible that was in everyone's life. How it was a part of their very identity.
As I began to love myself I freed myself of anything that is no good for my health - food, people, things, situations, and everything that drew me down and away from myself. At first I called this attitude a healthy egoism. Today I know it is Love of Oneself.