I prefer to take it more literally. The relationships we form with siblings are like nothing else. They're easy but the're tense, supportive but competitive and they have a way of reverting us to adolescence in the best and (more often) worst ways. And that's when they're going well. Read more at http://www.songmeanings.net/songs/view/3530822107859445636/#pmWqkTK7CMJCV5tw.99