I didn't really mean that he was in the nightmare (at least, not yet.) The doors act like bridges into other peoples dreams, and I just tried to put something generic that I think a dieing/unconcious persons dream would be like.
And as for the whole 'mental' thing, I did kind of overlook the point where you said his mental suffering had ended, but I suppose the main point Darkrai is trying to get across is that it dosn't matter if she heals all of his outward wounds, because if he dosn't wake up its pointless. Even if his body gets healed, he still would be unconcious, and that would give pleanty of time for Darkrai to get to him while hes still dreaming.
And, K9S8? I thought the whole 'seal' thing was a bit much... I mean, there was nowhere in your profile saying he had powers like that, and it sorta just came outta the blue...