 Its isolation was also enhanced by the belief by a great number of Tibetans that in its borders was one of the 'hidden lands' or beyul () referred to in the prophecies of Guru Rinpoche.sPo ba’s area of control far exceeded the boundaries of Bomê County.The kingdom acted as a protecting power from the Klo pa tribes for the streams of Tibetan pilgrims searching for this Promised Land in the East Himalayas from the mid-seventeenth century.