"If a given activity fails and it causes the death of a follower, it is because the rest of the group had insufficient faith or that it was done too late. Should the extraterrestrial beings not descend at the appointed time, then it may also be explained as due to their being frightened by the non-believers. Thus all plots and prophecies become possible — the capacity to reduce cognitive dissonance is the cement of the cult when it confronts reality, and this is why the layman is helpless before the nonsense that is spread by these speeches."
January 1, 1970
https://en.wikiquote.org/wiki/Cognitive_dissonance