What are two crucial quotations that reveal or encapsulate important themes of "Ceremony"?
On page 260 (of my edition), right before the end of the book, Grandma says, "It seems like I already heard these stories before…only thing is, the names sound different."
That line sums up the cyclical nature of tradition and narrative; the same stories get retold, with new people filling the roles of their mythic models. In a way, these stories are like ceremonies.
On page 1 (of my edition) you'll find the line "I'm telling you the story/she is thinking." That's another comment on the central role of narrative in "Ceremony." A story isn't just a story of an individual. Instead, it is a divine story; it is tapping the mind of a god or goddess.