Answer:
Death and Afterlife. Traditionally, Navajo were morbidly afraid of death and the dead and spoke about them as little as possible. The dead were buried promptly and without public ceremony, although a great many ritual taboos were observed by the close kin of the deceased and by those who handled the corpse. Ideas about the afterlife were not codified in a Systematic way, but varied from individual to individual. There was no concept of rewards and punishments for deeds done in this life; it seems that the afterworld was not thought of as a happy or desirable place for anyone.
Read more: Religion and expressive culture - Navajo http://www.everyculture.com/North-America/Navajo-Religion-and-Expressive-Culture.html#ixzz1cOUwAANC