A loosely standardized schema for organizing some of the most important supernatural powers that one gains through the performance of rites associated with a particular deity or set of deities. The list of eight great siddhis in The Glorious Sovereign Tantra of Mahākāla consists of the sword (ral gri, khaḍga), collyrium (mig sman, añjana), pill (ril bu, guṭika), and swift feet (rkang mgyogs, pāduka) siddhis, rendering medicines effective (grub pa’i sman, siddhauṣadhi) and competence in the recitation of mantras (sngags rnams la nges pa, mantrārṇave nirṇaya), and the mercury (dngul chu, rasa) and alchemy (bcud len, rasāyana) siddhis.

Eight “ordinary” accomplishments attained through practice: (1) eye medicine (añjana, mig sman); (2) swift-footedness (jaṅghākara, rkang mgyogs); (3) magic sword (khaḍga, ral gri); (4) travel beneath the earth (pātāla, sa ’og spyod); (5) medicinal pills (gulikā, ril bu); (6) travel in the sky (khecara, mkha’ spyod); (7) invisibility (antardhāna, mi snang ba); and (8) elixir (rasāyana, bcud len). (From Jamyang Khyentse Wangpo’s commentary).