Earth, Wind & Fire made a smooth transition into the disco era, adapting their R&B sound to the new groove. "Fantasy," written by group members Maurice and Verdine White
along with the keyboard player/composer Eddie del Barrio, fit right in at Studio 54, but also had a deeper meaning, which was typical of Maurice White's productions - he would put a message on top of an infectious beat. Talking about the message in this song, Maurice told Melody Maker
: "The song 'Fantasy' is motivated about escapism in the sense of living on a world that is untrue, a world that is unjust, a world that is very selfish and envious, there is a place that everyone can escape to which is their own fantasy. I had to write the song in the sense of sharing this place with people. It's an escape mechanism."