This is one of my all time favorite U2 songs, definitely in the top five. It's now ranking at number 1 because it has put Syda to sleep the last two nights. The song is sung from the point of view of a guardian angel and has always pulled me in for some reason. I stumbled across this great acoustic version from the Boston stop of the Elevation Tour. Got to love when any band strips things down to the basics, and as always, U2 fans know when to sing along.