This being of ultimate power has no name and is unknown to most of Norrath. It has no image in which to create others, nor does it have a personality as even deities would. It is simply a driving force which causes universes to exist. Or not to exist, at its own whim.
There is a growing schism of the Norrath’s population that believe that only the Nameless has true power. These “Faithless” or “Defiers” hold that worship of a deity is the only source of that deity’s power. While the Nameless set the universe in motion, the gods of Norrath are merely a higher caste of pawn; desperately vying for mortal worship to extend their lives and influence.