My favorite instance of one section referenced by another was this:
.....Ayrs went into laughter spasms at this! “I always say, Ted, to get the crowd to cry Hosanna, you must first ride into town on an ass. Backwards, ideally, whilst telling the masses the tall stories they want to hear.”
..........— David Mitchell, Cloud Atlas (p. 83).
.....See now, said Meronym, riding backwards on that lead ass, it ain’t ’bout Crows or fire, it’s ’bout how we humans got our spirit.
..........— David Mitchell, Cloud Atlas (p. 285).
Don't everybody jump in at once!