Gately, the wraith, and the figurants (pp. 829–830)
Then Gately considered that who knew what was necessary or normal for a self-proclaimed generic wraith in a pain-and-fever dream. Then he considered that this was the only dream he could recall where even in the dream he knew that it was a dream, much less lay there considering the fact that he was considering the up-front dream quality of the dream he was dreaming. It quickly got so multilevelled and confusing that his eyes rolled back in his head.
Context
The theme's keystone sentence: the book's one lucid dream, stacked three levels deep — dreaming, knowing it's a dream, considering that he's considering the knowing — until the recursion physically rolls his eyes back. Everything the wraith goes on to say about Hal, the figurants, and the Entertainment arrives inside this epistemic frame, which is exactly why the scene can carry the novel's biggest revelations deniably.