There is no single answer to what a "supreme being" is. This term can denote a many different concepts and ideas. In some cases, a supreme being is a deity who is in control of everything. In other cases, a supreme being is an abstract concept that represents the perfect form of existence. Some believe that all entities in the universe have supreme being potential, but only a few have realized this potential.

A Supreme Being can be whatever you want it to be. They can be benevolent or malevolent, limited or limitless, all-powerful or powerless. They can be an individual or they can be an abstract concept.