What metaphors are used in The Way to Rainy Mountain by N. Scott Momaday?

“Loneliness is an aspect of the land.”

The author does not reference it, probably because it is a condition associated with white settlers rather than the indigenous populations, known as “prairie madness.” The name indicates the symptoms and it was engendered among some settlers as a result of the isolation of living on the prairie combined with its topographical features. Look off into a horizon seeming to stretch toward infinity and, as the author does observe, "there is no confusion of objects in the eye, but one hill or one tree or one man.”