Lyric discussion by dlhouse88 

I think that through the glass is really a metaphor for putting on a fake display. He's looking through the glass, so the person on the other side thinks he looks normal and can see him clearly. In reality though, the glass is dividing them and behind the glass (or in his head) things aren't well.

"And while you're outside looking in Describing what you see Remember what you're staring at is me"

The other person's perspective is clearly different from his own because of the glass. The glass could be a variety of things. A lot of people have mentioned alcoholism, but something like depression could also be really be that. For the latter, maybe not for Corey in particular, but if you want to find a personal reason. There are a lot of things that paint a false image of ourselves in our every day lives.

@dlhouse88 Unless you have Dissociative identity disorder, like I do.

This song is my struggle in my own mind.

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