An interesting account of crazy gurus and mind altering cults, packed full of actual instances of people "snapping", and of the processes that might cause someone to fall into that abyss. I found the book fascinating but also quite negative and dark about spiritual things, perhaps deservedly so when you see the nature of these groups. The only light of optimism in the book being an interview with carl rogers, where he encourages spiritual processes which are balanced and allow complete freedom to those involved (or something to that effect). The book sent me into a kinda spin, overwhelming me with the sight of the empty abyss once more, and i'd advise people who might have been involved in mind altering groups to go lightly, and not to be consummed by the negativity. All that said, "snapping" is a fascinating read, of the strange beliefs that become believeable when the mind is pushed over the edge of reason, my particular favourite bit being about the moonies belief in sleep demons, those curious beings that overshadow people, and how their followers wore themselves down trying to resist the temptation of sleepiness. I think the ideas in the book are well thought out and researched, although it becomes a little implausible when the authors try to equate scientific formulae to the methods of brainwashing and cult hierarchies.