Lyric discussion by ASPbreakdown 

Cover art for The Air I Breathe lyrics by Our Last Night

Pretty legit song

I see it as being in a band and following their dream of making music but not getting caught up in it and taking it for granted. "The faces we ignore, Could be the faces that keep us alive" is talking about their fans being the reason they're able to keep following their dream because without any of us, they wouldn't be able to keep touring and making music.