"On top of the world, having a whole dream" is a phrase that evokes a sense of triumph and fulfillment. It suggests achieving a state of success or happiness where one feels invincible, as if standing at the pinnacle of their aspirations. The "whole dream" implies the realization of a complete vision or goal, something that has been fully accomplished or is within reach. This expression often conveys a moment of peak achievement, where all efforts have culminated in a profound sense of satisfaction and joy. It can be used to describe personal milestones, professional successes, or even moments of pure bliss and contentment in life.