Who needs it?
People with poison arrows like a tree or telephone pole or other item in line with their front door. People who don't get along with their neighbors. People who have negative energy afflicting them from a neighboring property (like a cemetery or abandoned lot or taller building.) People who have issues with an adjoining neighbor (downstairs, upstairs, attached next door.) People who have issues with neighbors in the workplace (offices, cubicles or desks.)
What do you do with it?
Carefully following the instructions that we give you when you purchase it, and depending upon the above situation, place or hang the Bagua Mirror between yourself and the offending object. Make sure the mirror side is facing the offending object and away from you and your home.
You'll find the Bagua Mirror on Zen Appeal here http://www.yourfengshuistore.com/Concave-Bagua-Mirror_p_72.html .