Aristotle postulated that, as his understanding of things like physics and momentum led him to believe, every moving object in the universe implied the existence of some object that set them all in motion without itself moving. Momentum, he believed couldn’t be (as it were) turtles all the way down. Something had to set it all in motion. Some first cause allows for all other cause and effect to take place.
Trust me, I got a B in Intro to Philosophy when I took it 15 years ago.
For Xavier, Noted Rim Protector Dwon Odom is that entity.