"It's arcade music but at the base it's a kind of dark energy that we're tapping into. It's us trying to get into somebody's head. What we were trying to do is recreate that feeling of sensory overload." - Bono on "Numb"
Bono stated that he wrote the song 'Kite' about and to his children; yet, after he completed it, he realized that it was a song of his dying father, whom he had a difficult relationship with, but in the end found his peace.