Symbols
What Is a Bagua Mirror?
An octagonal mirror surrounded by the eight trigrams of the I Ching, hung outside a doorway in Chinese folk feng shui to deflect harmful energy.
A Bagua mirror is a small round or octagonal mirror surrounded by the eight trigrams (八卦, bāguà) of the I Ching. In traditional Chinese folk feng shui, it's hung outside a home's front door — usually above the entrance or on an outer wall facing the street — to deflect sha qi (煞气), or harmful energy, back away from the household.
They're one of the most recognizable objects in Chinese folk practice, and they show up in doorways from Hong Kong tenements to suburban American homes.
The parts
- The mirror — usually convex, flat, or concave, depending on intent
- The eight trigrams — arranged in one of two classical orders (Early Heaven or Later Heaven)
- Wooden or metal frame — usually red, gold, or dark wood
The trigrams each represent one of the fundamental forces in Chinese cosmology — heaven, earth, water, fire, thunder, wind, mountain, and lake.
Types and their purposes
Traditional practice distinguishes three types by mirror shape:
- Flat mirror — deflects general negative energy, considered gentle
- Convex mirror — outward-bulging; scatters harmful energy in many directions. Most common today.
- Concave mirror — inward-curving; "absorbs" negative energy. Used more cautiously
Some sources also distinguish Early Heaven (Fu Xi) arrangement — used for protection — vs. Later Heaven (King Wen) arrangement — used for cultivating harmony inside a home.
Where to hang one (traditionally)
- Always outside, never inside a home
- Above the front door or on the exterior wall facing the street
- Aimed at whatever is considered the source of the "poison arrow" — a sharp roofline pointing at the door, a straight road ending at the property, a T-intersection
- Never aimed at another home's entrance (this is considered a serious rudeness and can invite reciprocal hanging)
The cultural context
The Bagua mirror is a folk feng shui object — it's not part of formal Compass or Flying Star feng shui as practiced by professional consultants. It comes from a longer, more everyday tradition of protective household objects that also includes red paper cutouts, guardian door gods, and small mirrors above windows.
Modern use outside China
You'll find Bagua mirrors sold in many spiritual and metaphysical shops around the world. Practitioners outside the original cultural context often use them as generalized protective objects, either indoors (hung on a wall) or outdoors, sometimes with the trigram arrangement chosen for symbolic reasons rather than strict tradition.
Some traditionalists caution against casual use — the object carries specific cultural meaning and, in classical practice, is chosen and hung with intention. If you're drawn to one, learning a little about which type (convex, flat, concave) matches your situation is a good way to honor that tradition.