"When a man is riding through this desert by night and for some reason -falling asleep or anything else -he gets separated from his companions and wants to rejoin them, he hears spirit voices talking to him as if they were his companions, sometimes even calling him by name. Often these voices lure him away from the path and he never finds it again, and many travelers have got lost and died because of this. Sometimes in the night travelers hear a noise like the clatter of a great company of riders away from the road; if they believe that these are some of their own company and head for the noise, they find themselves in deep trouble when daylight comes and they realize their mistake. There were some who, in crossing the desert, have been a host of men coming towards them and, suspecting that they were robbers, returning, they have gone hopelessly astray....Even by daylight men hear these spirit voices, and often you fancy you are listening to th