Hypnosis is usually done with the eyes closed -- people tend to visualize better that way, and I guess it prevents the eyes from drying out too. Many people ha

Hypnosis is usually done with the eyes closed -- people tend to visualize better that way, and I guess it prevents the eyes from drying out too. Many people have used hypnosis tapes, CDs and MP3s, for decades, without the presence of a hypnotherapist, and I've never heard of anybody being harmed by it. If the recording cuts out halfway through, the client will eventually emerge from hypnosis, as though they were waking from a nap.