There are lots of links between Byron Katie and Stever Robbins, interviews, reviews, blog-posts, than can be found with a search.
Below is one of the Stever Robbins pages, with links to all of the NLP, Gregory Bateson anthropologist; and Milton Erickson hypnotist info.
Stever Robbins has been around NLP since 1978, and is a NLP Master Trainer, and NLP Master Practitioner. He's connect
Forum:
"Cults," Sects, and "New Religious Movements"