It's much easier to wear a Chairman Mao button and shake your fists in the air and all that then to actually read the Communist manifesto and things like that and actually become involved in politics.
I guess the two Manifesto Communicating Vessels Mad Love and some of his poetry made a significant mark on me but as far as bringing a literary element into the music I see it as a much broader assimilation.
It is certain in any case that ignorance allied with power is the most ferocious enemy justice can have.