Shielding yourself from a coworker's or family member's stress or high-pitch negativity requires constructing a suit of psychological armor. Most of my clients, Virginia included, can do this simply by visualizing a situation in which they feel deeply calm. Picturing the best day you spent with your funniest friend or remembering a day at the beach with your dog might be enough protection for you.

Extremely spongy people may have to try a number of visualizations before finding the right defense. Check for effectiveness with the arm test: Ask your friends to come back over; keep holding different positive images in your mind's eye until you find that your arm is able to retain its muscle strength no matter what ugly thoughts others are sending your way. The delightful thing about this kind of safeguard is that it allows nourishing energy to reach you but deflects the stuff that's poisonous.

From the June 2006 issue of O, The Oprah Magazine