God began in the mind of man as an idea that has evolved in many cultures from polytheism to the monotheism promulgated by various religions. The idea of a "godlike" being was necessary in early societies to provide an author for otherwise unexplainable natural phenomena. Today, a great many people rely on the scientific method to analyze these things. I suspect the ultimate cause of the universe will never be known to anyone on this planet, although we may figure out the physical mechanisms involved in creating the solar systems.