Machig Labdr?n (Tibetan: ????????????????, Wylie: Ma-gcig Lab-sgron) was a renowned 11th century Tibetan Tantric Buddhist practitioner and teacher. Machig Lapdr?n was a great Tibetan yogini who originated several Tibetan lineages of the Indian tantric practice of Ch?d. Machig may have come from a B?npo family and, according to Chogyal Namkhai Norbu Rinpoche, developed Ch?d by combining native Tibetan B?npo shamanism with the Dzogchen teachings. Machig's Ch?d, also known as Mahamudra Ch?d, has been widespread in Tibet since Machig's lifetime. It is also called 'The Beggars' Offering' or 'The Cutting-Off-Ritual. ' Ch?d is a visionary Buddhist practice of cutting attachment to oneˇs corporeal form (in terms of the dualistic proclivity to relate to one's corporeal form as a reference-point that proves oneˇs existence). In some lineages of the Ch?d practice, chodpas and chodmas (practitioners of Ch?d) use a bell, small drum (a Ch?d damaru), and a thigh-bone trumpet (kangling) made of human bone (often obtained from the charnel ground of sky burials).