Heh, that's kind of a neat idea for a metaphor and forshadowing in the game. I don't know if this was the creator's intent, but it's nice to think they have a grasp of literary devices. But the fact that it's so subtle makes me think otherwise. I'd like to think it has a Deep Meaning, but I just figured it was one of Selphie's cheerful quirks. All the characters have little quirks to go along with their unique personalities.