Lyric discussion by CLUM5Y 

"....people's pretty side look yourself in the face and watch the worlds collide"

About how people idealize each other when in love. You are only seeing the things you like and are attracted to- but he's asking you to look at yourself; and realize we are all imperfect and have our ugly sides. Looking at your face as yourself is colliding two worlds, your outward appearance (doesn't have to just be physical) and your mental perception of that appearance.

He's asking you to look and see the difference between your face (appearance/persona) and your thoughts(truthful existence), and then apply that to your relationships with others. You don't see everything there is to other people, we can't perceive the entirety of peoples existence, and so he's inferring that when people talk about love, a lot of it is foolishness and naivety- in the sense that you are in love with something idealized, imaginary, and likely not genuinely what you perceive it to be. Pretty depressing thought.

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