In the story The Navajo origin legend The purpose of the story is to see how the Navajo people learned the creation of life. How they believed in their own beliefs. It shows that the Navajo people had their own belief system. In the time period the Navajo people only knew their religion and their literature. They did not know any other religion. Thats how they explain the creation of the human.It probably won't be the same exact word that the original Navajo people first told, but it is the same basic structure.