The NHS tried to hypnotise me once (well several times actually) but they failed to "put me under" each time. The therapist was a nurse specialist at Harefield Hospital, Nr Uxbridge. She had the most enormous ( * Y * ) ......... I found them very distracting
A "healer" in France did induce a trance like state in me on several occasions but that was more a laying on of hands than a "watch this crystal and listen to my voice" type of thing.
The French lady stood behind me and placed her hands on my head to perform her work. Perhaps less of a distraction