In the early 1970s, Deikman famously identified the syndrome of "mystical psychosis" to characterize first-person accounts of psychotic experiences that are strikingly similar to reports of mystical experiences. According to Deikman, psychotic experience need not be considered pathological, especially if consideration is given to the values and beliefs of the individual concerned. Deikman thought the mystical experience was brought about through a "deautomatization" or undoing of habitual psychological structures that organize, limit, select, and interpret perceptual stimuli, possible causes of such deautomatization including exposure to severe stress, substance abuse or withdrawal, and mood disorders.[4]
Deikman took part in a one-year research seminar on new religious movements in order to gain a better understanding of the attraction these movements had exercised on many Americans in the 1960s and 1970s.[2] In 1990, he wrote The Wrong Way Home: Uncovering the Patterns of Cult Behavior in American Society. Deikman observed that "behavior similar to that which takes place in extreme cults takes place in all of us," and suggested that "the longing for parents persists into adulthood and results in cult behavior that pervades normal society."[5]
Wiki
https://www.youtube.com/watch?v=htqOIjzi-jE