mahāmudrā is most well known as a teaching within the kagyu school of tibetan buddhism. however the gelug and sakya schools also practice mahāmudrā. the nyingma school and bon practise dzogchen, a cognate but distinct method of direct introduction to the principle of śūnyatā. nyingma students may also receive supplemental training in mahāmudrā, and the palyul nyingma lineage preserves a lineage of the "union of mahāmudrā and ati yoga" originated by karma chagme.