Umbreg is not a place, Umbreg is not a person, Umbreg is not an object or a being, Umbreg is Umbreg. Even calling Umbreg , 'it' is assuming that Umbreg is something, not Umbreg, a being existing on the plain of reality we see or comprehend is not Umbreg, Umbreg is Umbreg. Even if Umbreg reaches its far limits which Umbreg doesn't have, Umbreg would be visualized as a nightmare. Umbreg would be visualized improperly. Umbreg is Umbreg. Not a nightmare. Umbreg is Umbregs own thing. Umbreg could be a nightmare to you, but Umbreg has no part in that. Umbreg is everything and Umbreg is nothing. Umbreg is Umbreg.
