Lyric discussion by lasombra 

Cover art for Shallow lyrics by Poets Of The Fall

I think it's about a relationship that's pretty much dead. They barely even talk, there aren't any emotions left, but it grew comfortable and it'd be too hard to break things up and be all alone, too shameful to admit that the love they once fought for is now gone. So they just surrender, living their life with each other while feeling alone, always holding back, evading arguments and acting like everything's fine so their masks won't break to show the lack of feelings and connection. Knowing other marriages/relationships around them that are pretty much the same makes them believe that this is how things are bound to go and they accept it as a way of life.