I think it's a King's lament, it says when I was young and powerful, the world was my oyster but now its coming to an end I am fearful that Saint Peter won't be calling my name to enter the gates of heaven. It certainly could be Louis xiv of France or any other monster with lots of power. Never an honest word conjers up "politician" and leads the question; who is or was touted to be the most powerful man in the world?