
This mural is displayed on the flat ceiling at the rear of the cave. It illustrates the Sutra on the Ascent of Maitreya. In its center is a depiction of Tusita Heaven, featuring Maitreya Bodhisattva awaiting rebirth as the future Buddha. The Bodhisattva sits upon a Sumeru throne inside a five-bay wide hall with a hip-and-gable roof. He is flanked by two standing attendant Bodhisattvas and the Four Heavenly Kings. Outside the hall are four-story buildings surrounded by verdant foliage, in which heavenly beings play music and make offerings.
For more details, go to the Encyclopedia of Buddhist Arts: Caves Mo-S, page 1193.