This is the main assembly hall of the monastery where the deity of a four-fold Vairocana in a sitting posture is placed two meters above the ground. There are 33 life-size stucco paintings of the Vajradhatu Mandala in frames on the walls. The wall itself has been painted with frescos depicting the life of Buddha. There is a sanctum beyond this hall which houses the five Bodhisattvas of Good Age.