In Chinese tradition, Biyi is an extraordinary image of paired birds.
What makes these birds unusual is not especially elaborate plumage or an ability to fly great distances.
It is the idea that flight depends on being together.
One ancient account describes a bird with a single wing and a single eye, able to fly only when joined by another.
Another passage describes two birds with their wings side by side.
These descriptions eventually became part of one of Chinese literature's most recognizable images of companionship.
Today, Biyi birds are often associated with love and partnership.
But their earliest appearances are stranger and more varied than the romantic meaning familiar to modern readers.
How Does the Shanhaijing Describe the Biyi Birds?
The Haiwai Nan Jing, or Classic of Regions Beyond the Seas: South, contains a brief description of Biyi birds.
It places the birds in a distant region and describes two birds side by side, with blue-green and red coloration mentioned in the passage.
A few details are significant.
First, the image involves a pair.
Second, color is part of the description.
But the ancient wording is brief. It does not give a complete feather pattern or establish precisely how every color is distributed between the two birds.
Most importantly, this passage does not tell a developed love story.
It records an unusual paired-bird image within the distant world described by the Shanhaijing.
Manman: The Bird With One Wing and One Eye
The Western Mountains Classic section of the Shanhaijing records another unusual bird called Manman.
It appears in a passage about Mount Chongwu.
The bird is described as resembling a wild duck, but possessing only one wing and one eye. It can fly only when paired with another.
This account gives us a more specific physical image than the shorter description in the Haiwai Nan Jing.
Imagine two unusual birds, neither able to fly independently, needing to come together to take flight.
Later commentary identifies Manman with the Biyi bird tradition.
But the name used in this particular early passage is Manman, a distinction worth preserving.
Why Was Manman Also Associated With Flooding?
Today, Biyi birds are rarely associated with floods.
Yet the Western Mountains Classic adds another surprising detail to its account of Manman.
The bird's appearance is said to be followed by great flooding.
This belongs to an old tradition of associating unusual animals with omens and extraordinary events.
Several beings in the Shanhaijing are described not only by appearance but also by what supposedly happens when they appear.
Manman therefore was not solely an image of gentle companionship in this passage.
It also belonged to the ancient language of omens.
That statement is part of the textual tradition, not a scientific claim about animals predicting natural disasters.
Who or What Is Jianjian?
Another name closely associated with the paired-bird tradition is Jianjian.
The Erya, in its section on geographical and regional matters, describes southern Biyi birds that cannot fly unless joined together. It names them Jianjian.
Later commentary by Guo Pu connects these birds with the one-winged, one-eyed imagery and blue-green and red coloration.
This helps clarify the relationship among several names.
Biyi is the familiar descriptive name for paired-wing birds.
Manman appears in the Western Mountains Classic.
Jianjian appears in the Erya.
They belong to related textual traditions, but the descriptions do not occur in exactly the same form or place.
Recognizing those differences gives us a clearer understanding of how the image developed.
How Did Biyi Become an Image of Love?
As the paired-bird image entered poetry, its meaning developed.
The idea of two birds needing one another in order to fly was especially suited to expressions of human attachment.
During the Tang dynasty, Bai Juyi used Biyi birds in his famous poem The Song of Everlasting Sorrow.
He imagined lovers becoming paired-wing birds in the sky and intertwined branches on earth.
In this literary context, Biyi had become an image of enduring attachment and the wish to remain together.
It was no longer primarily a strange bird recorded in a distant landscape.
It had become a poetic expression of love.
But the later popularity of that romantic meaning does not mean the earliest Shanhaijing passage was itself written as a love story.
Why Has the Paired-Bird Image Lasted So Long?
The Biyi image is remarkably simple.
Two birds.
Remaining together.
Flying as a pair.
That is enough to create a memorable picture.
The story also does not require the two birds to look completely identical.
What matters is their relationship.
Beyond romance, modern readers may connect the image with companionship, cooperation, and mutual support.
These are understandable ways of reading the tradition today.
They do not need to be presented as one fixed list of meanings prescribed by ancient writers.
From Biyi Birds to the BIYI Bracelet
JAMBHALA's BIYI | Single-Line Agate Bracelet uses 8.3 mm single-line agate beads.
Each bead has a natural white stripe against a dark ground. The bracelet also includes matte 18K gold-plated brass spacers and a small gold-toned charm.
The position and appearance of the white stripe vary from bead to bead.
When the beads are arranged together, those separate markings create a continuous visual impression.
This relationship between individual natural patterns and a repeated arrangement offers a contemporary visual interpretation of the paired-bird image.
It does not imply any historically established connection between Biyi birds and single-line agate.
The ancient bird tradition provides inspiration; the bracelet is a modern piece of jewelry.
Final Thoughts
One of the most interesting things about Biyi is how the image changed over time.
The Shanhaijing preserves paired birds described with blue-green and red coloration, as well as Manman, a one-winged, one-eyed bird.
The Erya gives us the name Jianjian.
Later poetry turned paired flight into a widely recognized image of love.
Together, these different layers form the Biyi tradition familiar today.
We do not need to forget the strangeness of the early descriptions in order to appreciate the tenderness of the later image.
Related Reading
Biyi: Two Birds, One Flight
What Is the Shanhaijing? A Beginner's Guide