64:4.12

During these spiritually dark ages the culture of superstitious mankind reached its lowest levels. The Neanderthalers really had no religion beyond a shameful superstition. They were deathly afraid of clouds, more especially of mists and fogs. A primitive religion of the fear of natural forces gradually developed, while animal worship declined as improvement in tools, with abundance of game, enabled these people to live with lessened anxiety about food; the sex rewards of the chase tended greatly to improve hunting skill. This new religion of fear led to attempts to placate the invisible forces behind these natural elements and culminated, later on, in the sacrificing of humans to appease these invisible and unknown physical forces. And this terrible practice of human sacrifice has been perpetuated by the more backward peoples of Urantia right on down to the twentieth century.