To date, the discovered and confirmed 17 Vairocana images with dhyana mudra of the Tubo Empire are all distributed in the eastern Qinghai-Tibetan Plateau to the east of Lhasa, and their dates are concentrated in the mid 8th to the mid 9th centuries. The distribution of these images marked a distribution zone of the "Vairocana images with dhyana mudra" with the Yushu area in southern Qinghai as the node, the southern branch of which stretched into eastern Tibet via the Serxu area in northwestern Sichuan, and the northern branch stretched to Dunhuang via the Tubo-governed areas in present-day Qinghai and Gansu. The emergence and diffusion of this motif had close relationship with the popularization and influences of the thought of the Tibetan Chan Sect represented by Ye-shes-dByangs of the same period.
