The Prim is simply inferred to as the "darkness behind everything" in Stephen King's The Dark Tower novels. It is the magical essence from which the metaphysical entity Gan rose, as well as the six Beams and the Dark Tower.
This article is a stub, an article too short to provide more than rudimentary information about a subject. Please help the Stephen King Wiki by expanding it.
Community content is available under CC-BY-SA unless otherwise noted.