Messianic Complex

Jung once had two Jesus Christs in the asylum.  He put them together and introduced them saying, “Here is Mr. Miller.  He thinks he is Jesus Christ, and this is Mr. Meyer and he thinks he is Jesus Christ.”  Then he went out of the room and left them alone, and after a while he found one sitting in a corner drumming with his finger on the table, and the other was standing drumming on the window.  So he asked them if they had made out who was the real Jesus Christ, and both turned to him and said, “He is completely megalomaniac!”  In the other each saw it clearly!  The diagnosis was correct as far as the other was concerned.   TPoPA 121

Regarding Hitler:  "That Messianic self-concept was the compensatory overlay for the profound void within".  (Inside the Mind of Hitler)