The universe is a broad place and its inhabitants draw their strength from a myriad of sources.
Those Nations that leverage the forces of the universe through the use of tools and machines derive much of their power from Technology.
A diverse power that may come from within or without, Magic alters the rules of the universe to create unexpected effects. Typically an esoteric source of power, the specifics of how Magic is used varies wildly from one Nation to the next.
Psionics leverage the power of the mind or some larger mental construct to cause change in the universe.