All I Have Left Is You is such a great song. Everytime I listen to it I make up a 2 music video to it in my head. The 1) is about a couple that is going through a hard time and they're trying to work out and everything.
The 2nd is a person going through a hard a time and feels like everything is out of control and they feel like they're breaking and an another person (friend or significant other) is there helping the person out ressuring them that everything is going to be ok and they are there for them no matter what.
Oh yes this is an awesome song, i think it's one of the best slow songs they have done. Well i think Gone Away is there best slow song.