I was curious about Tony Robbins too .. but then I discovered that when you have completed to a certain level (whatever that is), you are invited to a private weekend and there you are compelled to walk barefoot across a bed of hot coals; I saw the videos on TV years ago.
That’s when I was sure he was a cultist.
I read one of his books. There was some good stuff about controlling your thought process, but then he started talking about the collective consciousness. That was when I knew he was off the deep end.