How does the author use foreshadowing in This House of Sky: Landscapes of a Western Mind?

The book is a memoir. The writer gives a crucial definition early on that acts as foreshadowing as well. He defines a relic as something for which the cultural surroundings and supports no longer exist. He writes of discovering this about relics, which directed his intention in his memoirs. He expresses throughout the work that he is now is a relic, though his life was not always that way.