Surmang refers to a vast alpine nomadic and farming region, historically a duchy under the King of Nangchen, with vast land holdings spreading over what is today the Tibet Autonomous Region and Qinghai Province. In Tibetan the King of Nangchen's realm was called the "nyishu dza nga" or the 21 (provinces). Since 1959 it is mainly within the Yushu Tibetan Autonomous Prefecture of Qinghai province in China. Yushu Prefecture is 97% ethnic Tibetan. The Surmang region is one of the poorest regions in China ranking it among the world's highest infant and maternal mortality, almost 100% illiteracy, and personal income of less than US 14¢/day. It is part of the catchment in China of the 30 million ultra-poor.

The Kagyu school, also transliterated as Kagyü, or Kagyud, which translates to "Oral Lineage" or "Whispered Transmission" school, is one of the main schools of Tibetan Buddhism. The Kagyu lineages trace themselves back to the 11th century Indian Mahasiddhas Naropa, Maitripa and the yogini Niguma, via their student Marpa Lotsawa (1012–1097), who brought their teachings to Tibet. Marpa's student Milarepa was also an influential poet and teacher.