
A lotus flower is featured in the center of the square caisson, with floral clusters in the corners and brightly-colored, multi-layered border patterns. There are four pairs of apsaras which encircle the canopy-like center on a white background. Two pairs of apsaras make offerings on the east and west slopes, and two pairs scatter flowers on the north and south slopes. Apsaras such as these were a common feature of ceiling murals during the late Sui dynasty (581–618). Thousand Buddha images are neatly arrayed on the four slopes of the ceiling.
For more details, go to the Encyclopedia of Buddhist Arts: Caves Mo-S, page 1183.