Meditation is a wonderful thing and quite like the experience of hypnosis.
Jon Kabat - Zinn, Ph.D., neuro-scientist, University of Massachusett Medical School found meditation shifts brain activity from the right frontal cortex, which is more active when a person experiences stress, to the left frontal cortex, which is more active when a person is calm. This shift decreases the negative effects of stress and mild depression and anxiety.
Dr. Adrian White, University of Exeter, showed people who meditate have increased electrical activity in the frontal cortex, which indicates they are experiencing lower anxiety and a more positive mentall state. Meditation also reduces activity in the amygdala where the brain produces fear.