Creativity seems the sum of three parts: Imagination, Vision and Execution.
Imagination is about mental images, what could be if...simple ideation is quite common.
Vision is the energy that activates the conceptual, bringing capacity beyond one's mind, engaging others, always bigger than self.
Execution is the hard means of delivery, the realization of the dream; often quite greater and much different from the original ideation.
Full blown realization of ideation, the journey from dream to full execution is quite rare.