Lyric discussion by dmbgirl 

Cover art for Welcome to the Machine lyrics by Pink Floyd

I think everyone has said some really good stuff about this song. I definitely think it has to do with the music industry and there control over the musicians but i also think it is talking about the world as a whole. People are controlled by the way society wants them to act. The song is saying "we know where youve been" and "we know what you've dreamed" because thats where they told them to go and thats what they told them to dream. Its a great song with alot of meaning to it. People should take this song to heart and realize that we need to not let our lives be ruined. Be yourself. And i really dont think this song is about machines in reality, that was all a metaphor.