Ascendants are powerful entities with traditionally small followings, capable of performing miracles and other acts of magic. Although more powerful than any mortal, they have less influence and worshipers than a pantheon God.
Beings of Power are near immortal entities. They are considered Ascendants when they both create and nurture a following. The question remains if the worship also provides power to an Ascendant.
The path to ascendancy is yet unknown, but witnessing a miracle sets you on its path.