This power influences the winds that swirl around in the center of the hurricane. He also refers to a similar power that can be compared to the energy at the center of the galaxy that determines the path of stars that surround it. Earth and Mars orbit. The centerpiece has the biggest muscle and everything else is rotating around that center. That is easier to understand.
Nobody knows, but they think there is a huge massive something in the center.
I rather think maybe it's a vacuum. Maybe it's a black hole that has the massive gravity to pull all the stars around. But I think the center piece is a vacuum like the center of a hurricane. It is not forcing all the other pieces to move. Instead, each of them affect each other.