Within the depth-psychology library, 'siddhi' — the Sanskrit term for supernormal powers or perfections attained through advanced yogic practice — occupies a contested but philosophically substantial position. The corpus reveals three principal axes of treatment. First, in the exegetical literature on Patañjali, represented most fully by Bryant's commentary on the Yoga Sūtras, siddhis are discussed with precise scholastic attention: they are the fruits of saṃyama and are enumerated with care, yet Patañjali himself classifies them as obstacles (upasargāḥ) to samādhi proper, generating a standing tension between attainment and liberation. Second, in the Tibetan Buddhist materials — Evans-Wentz, Govinda — the term shades into the cosmological, appearing in deity-names (Amoghasiddhi) and hagiographic narratives of masters who 'attain a siddhi' at power-spots, where the powers signify realized mastery over subtle-body physiology and elemental forces rather than mere conjuring. Third, in mythological synthesists such as Campbell, siddhi is briefly but definitively glossed as 'psychophysiological powers,' anchoring it within a comparative framework that links Hindu tantra to shamanic traditions. Across all contexts the corpus confirms White's thesis, cited by Bryant, that attainment of mystical powers is arguably the defining referent of 'yoga' across its long textual history — a claim that sits uneasily alongside modernist sanitizations of the tradition.
In the library
16 passages
siddhis are integral to the entirety of Hindu beliefs from their earliest Vedic beginnings right up until the ongoing hagiographies of modern Hindu mystics… the most applicable definition of yoga is precisely that of attainment of mystical powers
Bryant, drawing on White, argues that siddhis are not a peripheral curiosity but the historically primary referent of yoga itself, continuous from the Upaniṣads through the Tantras.
Bryant, Edwin F., The Yoga Sutras of Patanjali: A New Edition, Translation, and Commentary, 2009thesis
the Indic Yogic tradition in general, as specified by Patañjali in the next sūtra, considers all mystic powers, which arise of their own accord even without the yogī desiring them, to be impediments to the goal of yoga
Patañjali's paradoxical position — that siddhis obstruct liberation even when unsought — is identified as the central tension within the classical Yoga treatment of supernormal powers.
Bryant, Edwin F., The Yoga Sutras of Patanjali: A New Edition, Translation, and Commentary, 2009thesis
the advanced yogī is able to perform saṃyama on any sequence of sounds and gain access to the meaning and idea present as the sphoṭa embedded within even if the language is not known
Bryant explicates a specific siddhi — knowledge of all speech through saṃyama — by grounding it in the Yoga school's metaphysics of eternal word-referent connections and the sphoṭa doctrine.
Bryant, Edwin F., The Yoga Sutras of Patanjali: A New Edition, Translation, and Commentary, 2009thesis
One of the siddhis commonly held to be attainable by accomplished yogīs is the ability of an individual yogī to create numerous personal bodies… each of the bodies created by the yogī has its own individual mind
The siddhi of manifesting multiple bodies is analyzed philosophically: each projected body possesses a separate citta derived from the yogī's ahaṃkāra, illuminating the metaphysical architecture of Sāṃkhya-Yoga.
Bryant, Edwin F., The Yoga Sutras of Patanjali: A New Edition, Translation, and Commentary, 2009thesis
The siddhi experiences of kuṇḍalinī awakening associated with the śākta traditions are indications of yogic success and can be enjoyed provided one has realized one's oneness with the supreme deity.
Bryant contrasts the Śākta-tantric understanding of siddhis — as signs of successful kuṇḍalinī ascent to be embraced — with the classical Yoga school's cautionary stance.
Bryant, Edwin F., The Yoga Sutras of Patanjali: A New Edition, Translation, and Commentary, 2009supporting
by performing saṃyama on a person's facial countenance and expression, a yogī can understand the person's state of mind… this siddhi would seem to be an extension of this ability
The siddhi of mind-reading is presented as a supernormal intensification of ordinary empathic perception, with a parallel drawn to the Buddhist ceto pariya ñāṇaṃ.
Bryant, Edwin F., The Yoga Sutras of Patanjali: A New Edition, Translation, and Commentary, 2009supporting
if a yogī has realized a high degree of concentration, could not the psychological aspect of the three guṇas metamorpho[se]… the yogī is held to be able to transcend the limitations of the kleśas and the ahaṃkāra
Bryant explores the metaphysical mechanism underlying siddhis: by merging with the cosmic buddhi through advanced samādhi, the yogī can restructure the guṇa-substratum of physical reality.
Bryant, Edwin F., The Yoga Sutras of Patanjali: A New Edition, Translation, and Commentary, 2009supporting
The siddhis are referred to as abhijñas in Buddhism; Pensa (1969, 219) notes that they take first place in all the lists of qualities, states, and means favorable to attaining the enlightened state of either a Bodhisattva or a Buddha
Bryant documents the cross-traditional currency of siddhis, noting their functional equivalents in Mahāyāna Buddhism where they rank among the primary qualifications for Bodhisattva and Buddhahood.
Bryant, Edwin F., The Yoga Sutras of Patanjali: A New Edition, Translation, and Commentary, 2009supporting
The visva-vajra represents the magic spiritual power (siddhi) of a Buddha, in whom the principle of volition is free from all selfish tendencies.
Govinda interprets the viśva-vajra as the iconographic embodiment of siddhi understood as a Buddha's purified volitional power, connecting it to the element air and the Dhyāni Buddha Amoghasiddhi.
Govinda, Lama Anagarika, Foundations of Tibetan Mysticism, 1960supporting
Amogha-Siddhi, the 'Almighty Conqueror', the Giver of Divine Power… the All-Performing Wisdom, which gives perseverance and unerring action in things spiritual
Evans-Wentz presents Amoghasiddhi as the cosmological personification of siddhi in the Tibetan Buddhist mandala, where divine power is the transmutation of the aggregate of volition through the All-Performing Wisdom.
Evans-Wentz, W. Y., The Tibetan Book of the Dead (Evans-Wentz Edition), 1927supporting
'Be gracious enough to break thy meditation, for we are about to attain a great siddhi'; whereupon the serpent freed itself, and the garuḍa became Padma, who asked, 'What siddhi is it?'
In hagiographic narrative, siddhi appears as a concrete goal of ritual attainment pursued by masters at power-sites, illustrating its practical dimension within Vajrayāna biographical literature.
Evans-Wentz, W. Y., The Tibetan Book of the Great Liberation, 1954supporting
Vajra-pāṇi appeared to him and foretold how Padma would attain a certain siddhi in the great cemetery near Rājagir.
The siddhi is positioned as a prophesied attainment facilitated by deity-transmission at a charged sacred locus, embedding it in the initiatory geography of Tantric Buddhism.
Evans-Wentz, W. Y., The Tibetan Book of the Great Liberation, 1954supporting
Campbell's index gloss succinctly frames siddhi as 'psychophysiological powers,' situating it within his comparative mythology as a cross-cultural category linked to shamanic and yogic traditions.
Campbell, Joseph, The Inner Reaches of Outer Space: Metaphor as Myth and as Religion, 1986supporting
The practice of yoga was thought to give a skilled yogin powers (iddhi), which showed the dominion of a trained mind over matter, but yogins generally warned against the exercise of iddhi, because it was all too easy for a spiritual man to degenerate into a mere magician.
Armstrong records the Pali Buddhist ambivalence toward iddhi (the cognate of siddhi), noting the canonical warning that display of powers risks reducing the spiritual master to a performing magician.
the Buddha staged a striking display of iddhi. He levitated, jets of fire and water gushed from his limbs, and finally he walked along a
Armstrong illustrates the narrative deployment of iddhi as a pedagogical instrument in the Buddha's legend, where miraculous display serves to overcome the pride of an unresponsive audience.
the victorious son, becoming Padma's disciple, mastered the Sūtras, the Tantras, and the Mantras… and was named SiddhiPhala.
The name SiddhiPhala — 'Fruit of Attainment' — appears in biographical legend as a titular recognition of accomplished mastery, illustrating siddhi's role as a marker of completed spiritual fruition.
Evans-Wentz, W. Y., The Tibetan Book of the Great Liberation, 1954aside