James W. Loewen said this quote

Consider how textbooks treat Native religions as a unitary whole. ... These Native Americans ... believed that nature was filled with spirits. Each form of life, such as plants and animals, had a spirit. Earth and air held spirits too. People were never alone. They shared their lives with the spirits of nature. ... Stated flatly like this, the beliefs seem like make-believe, not the sophisticated theology of a higher civilization. Let us try a similarly succinct summary of the beliefs of many Christians today: These Americans believed that one great male god ruled the world. Sometimes they divided him into three parts, which they called father, son, and holy ghost. They ate crackers and wine or grape juice, believing that they were eating the son's body and drinking his blood. If they believed strongly enough, they would live on forever after they died. describe Christianity this way. It's offensive. Believers would immediately argue that such a depiction fails to convey the symbolic meaning or the spiritual satisfaction of communion.

~ James W. Loewen

Many African societies divide humans into three categories: those still alive on the earth, the sasha, and the zamani. The recently departed whose time on earth overlapped with people still here are the sasha, the living-dead. They are not wholly dead, for they still live in the memories of the living, who can call them to mind, create their likeness in art, and bring them to life in anecdote. When the last person to know an ancestor dies, that ancestor leaves the sasha for the zamani, the dead. As generalised ancestors, the zamani are not forgotten but revered. Many … can be recalled by name. But they are not the living-dead. There is a difference.

~ James W. Loewen