Sentence:  Wilson, quite early on, points out: “Many messiahs have undoubtedly been mental cases, suffering from psychotic delusions” These looney-<WSD>toon</WSD> 'messiahs' seem to this reviewer to be running very fast away from any profound development in human consciousness! 
Meaning of the word marked with <WSD> tags:  (loony toon) "or" '''(looney toon)''', "alternative forms of" '''(loony tune)''', "which see".