I've heard of him. From what I've read, he seems to be a relatively benign self-help type guru, with a typical over-the-top "biography" that boasts his worldly travels and foreign acclaim. He claims to have a PhD in clinical psychology, though none of my research has actually turned up at which institution he earned his degree, so I'm weary of the title of "Doctor.
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"Cults," Sects, and "New Religious Movements"