THE CULT AND PRACTICE OF THE BONPO DEITY WALCHEN GEKHOD, also known as ZHANG-ZHUNG  MERI, the Meditation Deity for the Zhang-zhung Nyan-gyud Tradition of  Dzogchen from the Ancient  Kingdom of Zhang-zhung in Western Tibet, containing translations of the Sadhana Practice texts for the Deity Zhang-zhung Meri from the  Me-ri sGrub-skor, together with the Origin Myth of  Walchen Gekhod and translations of commentaries on this practice by John Myrdhin Reynolds.

Before the coming of Buddhism from India to Tibet in the 7^thand 8^thcenturies and simultaneously arising the empire in Central Tibet, there flourished in northern and western Tibet the ancient kingdom of Zhang-zhung. This kingdom, which centered around the sacred mountain of Kailas, was closely connected with other ancient Central Asian cultures, and its own religious culture was known as Bon.