(1) Eighty (or eighty-four) great accomplished beings (Skt. mahasiddhas) of ancient India whose lives have been recounted by Abhayadatta. See Buddha’s Lions (Emeryville, Dharma Publishing, 1979). (2) The eighty siddhas of Yerpa in Tibet, disciples of Padmasambhava who attained the supreme accomplishment. [TLWF 2011]