there is a witch doctor who uses it to command someone to stop breathing and it kills them.
I tried hypnosis once and it's a lot like deep meditation. In a psychology class I took, we had a guest speaker who was a licensed hypnotherapist and she did a group session on the entire class. From what I remember, it went something like this:
Close your eyes, relax, and focus only on my voice.
Relax your shoulders, your limbs, your face.
Feel the relaxation poured over you, dripping from the top of your head down to the rest of your body.
Imagine a cord running from the base of your spine anchored to the ground. Allow any worries to run down that cord.
I will count to ten. By the time I'm done counting you will be completely relaxed and in a new place. In this place, all things are possible.
You see a control panel. One knob is for stress, another for fears, etc. You will set each one to zero.
I will count from ten down to one and by that time you will open your eyes feeling rejuvenated, refreshed and energized.
For about three days, I felt noticeably more relaxed like I had just woken up from a nap. I needed less sleep too. They can tailor hypnotherapy sessions for people who want to quit smoking or whatever problem it is the person wants to work on. For relaxation, I know there are CDs you can buy.