This lines up with what I've heard from a couple of people who've actually gone through the process rather than just read about it online.
https://brookswmvx823.publishlane.com/posts/do-i-need-to-believe-in-hypnosis-for-it-to-work-2
This lines up with what I've heard from a couple of people who've actually gone through the process rather than just read about it online