China and Japan · Southern China and Hong Kong
Bagua Mirror
Also known as Pa kua mirror, Bagua jing
A small round mirror framed by the eight trigrams of the Book of Changes, hung outside the front door to turn harmful influences away and keep the household calm.
Walk through older neighbourhoods of Hong Kong or southern China and you will notice small eight-sided frames above doorways, each holding a round mirror. This is the bagua mirror, a household guardian that joins one of the oldest diagrams in Chinese thought to the ancient belief that a mirror can turn harm away.
The eight trigrams
The word bagua means “eight ”. Each trigram is a stack of three lines, solid or broken, and together the eight cover every possible combination. In Chinese philosophy they stand for the basic forces of nature: heaven, earth, thunder, wind, water, fire, mountain and lake.
The trigrams belong to the world of the Yijing, the Book of Changes, one of the classic texts of Chinese culture. Legend credits their discovery to Fu Xi, a culture hero of the remote past, and they were later paired into the sixty-four hexagrams used in divination. Over the centuries the eight signs became a shorthand for the order of the universe itself.
Two classic arrangements of the trigrams exist. Protective mirrors usually show the one called Early Heaven, or Xiantian, which is linked with Fu Xi and places heaven at the top. Feng shui practitioners use the other arrangement, Later Heaven, when mapping the inside of a house, which is one reason the mirror belongs on outside walls.
Why a mirror
Mirrors have held a protective role in China for a very long time. Polished bronze mirrors were treasured possessions in early China, often decorated with cosmic designs and placed in tombs, and folklore told of mirrors that could reveal the true form of a disguised spirit.
The bagua mirror brings this old belief into feng shui, literally “wind and water”, the art of placing buildings in harmony with their surroundings. In feng shui thinking, sharp corners, straight roads aimed at a door or the edge of a neighbouring roof can send out harsh energy known as . A bagua mirror facing such features is believed to deflect it and protect the people inside.
Flat, convex and concave
Not all bagua mirrors are alike, and the curve of the glass carries meaning. Teachers differ in their advice, but a common explanation runs like this:
- Flat mirrors are said to reflect unwanted influences straight back where they came from.
- Convex mirrors, which bulge outwards, are said to scatter and deflect harsh energy.
- Concave mirrors, which curve inwards, are said to draw in and hold what they face, and some teachers link them with gathering good fortune.
Many mirrors add a small yin and yang symbol at the top or centre, and some include protective characters or images of guardian figures. The frames are usually painted in red, green and gold, colours associated with good fortune and life.
How it is hung
Custom treats the bagua mirror as a strong object, to be used with care. It is hung outside, centred above the main door or a window, with the trigram for heaven, three solid lines, at the top. Many practitioners advise against hanging one indoors, where it would face the household itself.
Courtesy matters too. A mirror aimed squarely at a neighbour’s door can be read as unfriendly, and in crowded cities this has caused real disagreements. Many families therefore hang one only when they see a clear reason, such as a sharp corner pointing straight at the entrance.
Guardians of the threshold
The bagua mirror is one of several guardians of the Chinese home. Red couplets frame doorways at New Year, painted door gods watch over entrances, and strings of lucky coins are hung to welcome prosperity. In other cultures the evil eye bead and the Hamsa hand play a similar part, watching over the place where a household meets the world.
What unites them is the idea that the door deserves special care. It is where visitors, news and fortune arrive, and many traditions mark it with a sign of welcome or a sign of protection. You can read more about this idea in talismans for home and family and talismans for protection.
Keeping a bagua mirror
Wipe the mirror gently with a soft, dry cloth and keep the frame free of dust and cobwebs, since a dull, neglected mirror sits uneasily with the idea of watchfulness. If the glass cracks, most people replace it rather than keep a broken mirror above the door.
Treated with care, the bagua mirror becomes a quiet part of the house, noticed mostly by those who know its story. For anyone who does, it is a small daily reminder that a home is worth guarding with thought and good will.
taliaris describes beliefs and customs; it makes no claim that a talisman has an effect.