The author wanted to introduce the book’s background and his purpose for writing.
Explanation:
N. Scott Momaday's memoir "The Way to Rainy Mountain" is a form of travelogue as well as a historical documentation of his attempt to trace his heritage. It also serves as a way of reconnecting to his past, his heritage and his background.
In the prologue, Momaday begins with the description of the mountain and how it had actually been called that. The prologue also gave an introduction to why he was writing this piece, and why he needed to focus on that. Attempting to preserve the traditions and customs of his Kiowa people, Momaday relies on the prologue to give that purpose, focusing on the importance and greatness of the Kiowa people.
It is believed in historical context that he fell in his escape and broke his left leg although he told everyone he fell of his horse and was trampled.
Gilgamesh is so full of grief and sorrow over his friend that he refuses to leave Enkidu's side, or allow his corpse to be buried, until six days and seven nights after his death when maggots begin to fall from his body.