There was an interesting article on pitchfork recently which touched on this:
http://pitchfork.com/features/why-we-fight/7923-why-we-fight-10/
A lot of pop music is an exercise in aspiration like that. In fact, I suspect this is part of why some people get older and hit a point where they stop responding to much new music: They're no longer dreaming out into some unknown future, and they've realized that most of the futures they used to romanticize turn out to be complicated and not-necessarily-dreamy in real life.
http://pitchfork.com/features/why-we-fight/7923-why-we-fight-10/