The New Scientist says that by looking at your body, you can cure certain kinds of pain. The feedback corrects the mind's distorted image of the body.
I've said for a long time: Self reflection cures a lot of the anguish and anger we feel. By looking at our souls and correcting our self-image to what is really there, we actually become calmer, even if our self-image then becomes less 'ideal'. The pain eases.
Nice to see Science finally backing up mysticism. :-)