just for some perspective...someone I know promoted/booked lots of Richard Bandler seminars over the years, and I've heard most of his material.
For example, his Neurosonics Inductions, and all his books, HDE, etc.
Bandler is a questionable character, questionable ethics.
BUT, his material is actually about 1000x more empowering than the Byron Katie stuff. 10,000x.
For example Neuroso
Forum: "Cults," Sects, and "New Religious Movements"