Jetsun Milarepa (, 1028/40–1111/23) was a Tibetan siddha, who was famously known as a murderer when he was a young man, before turning to Buddhism and becoming a highly accomplished Buddhist disciple. He is generally considered one of Tibet's most famous yogis and spiritual poets, whose teachings are known among several schools of Tibetan Buddhism. He was a student of Marpa Lotsawa, and a major figure in the history of the Kagyu school of Tibetan Buddhism. He is also famous for the feat of climbing Mount Kailash. Biography — The Life of Milarepa Milarepa's life-story is famous in Tibetan culture, and retold many times. The best-known biography, The Life of Milarepa, written by Tsangnyön Heruka (1452–1507) in the fifteenth century and drawing from older biographies, is still very popular. Most of the present-day stories on Milarepa come from this single source, with oral lineage predominating as well as relics including his bearskin coat. While "very little [is known] about him as a historical person at all," Milarepa is venerated by all Tibetan schools "as an exemplar of religious dedication and mastery," and his life story established the lineage of the Kagyu sect and its key figures. Early life According to The Life of Milarepa, Milarepa was born in western Tibet to a prosperous family. When his father died, his family was deprived of their wealth by his aunt and uncle. At his mother's request, Milarepa left home and studied sorcery to take revenge, killing many people. Training and realisation Later he felt sorrow about his deeds, and became a student of Marpa the Translator. Before Marpa would teach Milarepa, he had him undergo abuse and trials, such as letting him build and then demolish three towers in turn. Milarepa was asked to build one final multi-story tower by Marpa at Lhodrag, which still stands. Eventually, Marpa accepted him, explaining that the trials were a means to purify Milarepa's negative karma. Marpa transmitted Tantric initiations and instructions to Milarepa, including tummo ("yogic heat"), the "aural transmissions" (), and mahamudra. Marpa told Milarepa to practice solitary meditation in caves and mountain retreats, which, according to the biography, after many years of practice resulted in "a deep experiential realization about the true nature of reality." In some other sources, it is said that Milarepa and Marpa both came to India to seek one most important thing for ultimate realisation from Marpa's guru, but