Shabkar Tsogdruk Rangdrol (1781 - 1851) devoted himself to many years of meditation in solitary retreat after his early training in the province of Amdo under the guidance of several extraordinary Buddhist masters. With determination and courage, he mastered the highest and most esoteric practices of the Tibetan tradition of the Great Perfection. He then spent the rest of his life wandering around the Himalayan regions, practicing for long periods in contemplative retreat, teaching, and performing virtuous deeds on a vast scale.