The latest trend in mirrors according to the “LA at Home” blog at the Los Angeles Times are these ‘masculine leather strapped designer mirrors’ that cost a pretty penny. In feng shui terms, the round shape automatically puts them into the feminine yin category but I agree that having leather and bronze trim and a rather rustic simple hanging fixture does lend a masculine yang balance.
* If you have a room with a dark area you can hang a mirror to reflect and bring in more light. The mirror creates the illusion of a window and that stimulates the ch’i energy as well. (Darkness is equated with stagnant ch’i.)
*If you have a missing sector of your bagua map you can hang a mirror to seal and enhance, thereby replacing the missing sector. This one is a little tricky and I suggest calling in an expert to help you with placement.
* Often at the top of a stairs landing a mirror can help solve a poison arrow (too-fast-moving ch’i).
*If you can’t place your desk or bed in the Command Position, you’ll want to place a mirror so you can see who is entering the room while you’re sitting on your bed or at your desk.
*Reflective surfaces behind a stovetop multiply and magnify the burners symbolizing wealth and abundance.
* A bagua mirror can deflect negative energy from a street, from a telephone pole, from a difficult neighbor if hung properly.
Where NOT to use mirrors? Never hang a bagua mirror inside the house. The mirrored side should always be facing outside. Children may have trouble sleeping in a room with large mirrored walls as the energy is over stimulated by bouncing light (hang a drape over a mirrored closet). The same is true for adult bedrooms. Sometimes the opposite effect occurs: the over stimulated ch’i energy creates a situation where one feels tired all the time and is sleeping too much if not too little. Another situation is hanging mirrors opposite each other—one wall is enough.
Keep in mind that you want the ch’i energy of mirrors to be “contained” within a frame and you want to always hang them high enough so that nobody’s head is being cut off when looking into the mirror.
See also the Feng Shui By Fishgirl archives: Mirror, Mirror and Feng Shui Mirror Cure as well as Impact of Windows on Feng Shui.