In 1969 or 1970, I began to re-evaluate my whole concept of what I wanted my music to say…. I was very much affected by letters my brother was sending me from Vietnam, as well as the social situation here at home. I realized that I had to put my own fantasies behind me if I wanted to write songs that would reach the souls of people. I wanted them to take a look at what was happening in the world.
–Marvin Gaye