there was a social experiment about this. if i mention it briefly:
there are 2 group of people. the first group is given an easy test. all of them succeeded. 4 different pictures, which has dotted shapes, are shown to them. the first three pictures has concrete shapes but the last one does not have any shape on it. the consensus of the first group is that the last picture does not contain a specific shape.
the second group had an hard test without enough time. so they failed. then the same pictures are shown to them. they say for the last picture "there is a shape on this picture" and gave their predictions but there was not any shape on it.
so according to this experiment, when we feel unsafe, unsuccessful and weak; we tend to see and believe things that are not exist. well, we can say that most of humanity is more or less like this.