What most of us must be involved in--whether we teach or write, make films, write films, direct films, play music, act, whatever we do--has to not only make people feel good and inspired and at one with other people around them, but also has to educate a new generation to do this very modest thing: change the world.
History is instructive. And what it suggests to people is that even if they do little things, if they walk on the picket line, if they join a vigil, if they write a letter to their local newspaper. Anything they do, however small, becomes part of a much, much larger sort of flow of energy. And when enough people do enough things, however small they are, then change takes place.
The meaning ... of a writer will be found not just in what he intends to say, or what he does literally say, but in the effect of his writing on living beings.