Quick Answer: What Is a Chinese Caisson Ceiling?
A Chinese caisson ceiling (藻井, zǎojǐng) is a decorative ceiling feature that draws attention to one part of an interior. Many examples rise in recessed tiers toward a center, including documented examples above a throne or an image of a deity.[1][2][3]
- Shape: Square, octagonal and circular elements can be layered into one composition.[1]
- Focus: In the Hall of Supreme Harmony (太和殿, Tàihé Diàn), a gilded dragon occupies the center above the ceremonial throne area.[1][2]
- Variation: Painted ceilings and elaborate temple examples can give that overhead focus a different form.[1][3]
Look for a change in depth or pattern in the ceiling, then look at what it is placed above.[1][2][3]
A square frame draws your eye inward to an octagon, then to a round center. In a gilded palace ceiling, a dragon leans down from that center. In a temple example, the center can open onto a painted sky.[1][3]
How to Recognize a Zaojing
A tiered caisson looks like a localized recess in a room. The nearest frame is usually the broadest, while successive frames lead the eye upward. Carved figures, painted patterns and gilding can emphasize the center. The surrounding flat ceiling may be organized as a continuous grid of painted panels.[1][5]
Start with the edge of the feature. A repeated grid can cover a large area at a consistent level. A caisson may use deep tiers or a separate pattern to focus attention on a single part of the room. The Hong Kong Palace Museum describes a flat painted example at the Pavilion over a Pond, where the central dragon and octagonal border provide that focus without the deep profile of the imperial hall.[1][5]
The term describes an interior ceiling feature. The curve of a Chinese barrel vault belongs to the masonry that spans a space. A ceiling feature directs attention within the room. A masonry vault describes how the space is spanned.[1][5]
The Hall of Supreme Harmony and Its Coiled Dragon
In the Hall of Supreme Harmony, the composition begins with a square lower frame and rises through an octagonal tier to a round upper center. The Hong Kong Palace Museum identifies carved clouds and dragons in the middle tier. The coiled dragon at the center lowers its head toward a pearl-shaped element known as the Xuanyuan mirror (轩辕镜, Xuānyuán jìng).[1]
The Palace Museum describes the hall as a setting for major imperial ceremonies. The throne, dragon columns and overhead dragon are parts of that setting. A viewer looking up from the throne area encounters a different relationship between motif and room than a visitor looking up at a temple altar. See Chinese hall names for the role of the building name in reading the larger complex.[1][2]
The Hong Kong Palace Museum connects the round upper part and square base with a traditional image of round heaven above square earth. That interpretation fits the geometry it describes. Other caissons have their own patterns and subjects.[1]
Longfu Temple and the Ceiling as a Sky
The caissons from Beijing’s Longfu Temple once formed part of a Buddhist interior. A conservation study describes miniature pavilions and figures arranged in tiers and a painted star chart above them. Such details can bring a celestial setting into the space over an image. The tiny roofs and bracket sets recall forms built in full size elsewhere in the temple precinct.[3][4]
After the loss of the original hall, surviving pieces were preserved and used in restoration. The Celestial Palace and Coiled Dragon caissons are held at the Beijing Ancient Architecture Museum at the Altar of Agriculture. Their current museum setting allows the ceilings to be studied as objects with their own history of removal, preservation and reassembly.[3][4]
FAQs About Chinese Caisson Ceilings
Are all Chinese caisson ceilings round?
A caisson can combine a round center with square and octagonal frames. The Pavilion over a Pond also has a flat painted example. Check the depth and outline of the whole feature.[1]
What is the pearl under the dragon in the Hall of Supreme Harmony?
The pearl-like object held by the gilded coiled dragon is called the Xuanyuan mirror. It sits at the center of the Hall of Supreme Harmony’s caisson.[1]
Where can the Longfu Temple caissons be seen?
The Beijing Ancient Architecture Museum houses the temple’s Celestial Palace and Coiled Dragon caissons. They came from the former Longfu Temple complex.[3][4]
Sources
[1] Hong Kong Palace Museum. Ceiling decorations and three caisson examples
[2] Palace Museum. Hall of Supreme Harmony and imperial ceremonies
[3] Beijing Municipal Cultural Heritage Bureau. Research and restoration of the Longfu Temple caissons
[4] Beijing Magazine. The relocated caissons of Longfu Temple
[5] Academy of Chinese Studies. Caissons and gridded ceilings in the Forbidden City