What does it mean????

So lately I've really been liking this song called Maps by the Yeah Yeah Yeahs. I heard it again last night when we all were playing Rock Band. I know I'd heard it before that time, but I can't remember where and I don't know why I don't own. Even more important... I don't know WHAT IT MEANS!!!! Why maps? I've tried to research this and I haven't really gotten a good answer. UCSC had an interesting take on it's meaning. Here's their video:



The original Yeah Yeah Yeahs music video can be found here: http://www.youtube.com/watch?v=SYJjHCZN46U

So what does it mean? Can anyone tell me?