Mirrors serve many purposes in feng shui:
They reflect positive energy or deflect the negative. They can activate a stagnate room, multiply wealth or increase another desired goal. Mirrors also serve as the window to your future, so you want to keep them sparkling clean and be aware of what they are reflecting. For example, a mirror behind a live plant magnifies living energy; however, if your mirror reflects the clutter in your office, you are doubling the stagnant energy!