Among the stranger subjects in tantric literature, shapeshifting remains one of the least discussed in modern Buddhist writing. Contemporary presentations of Vajrayana often reduce siddhis (magical powers) to metaphors but the older tantric sources speak in a very different voice. They describe special abilities gained through ritual practice, sexual yoga, cremation-ground rites, mantra recitation, visionary contact with yoginis and dakinis, and mastery over subtle forces in the body. One of those powers was transformation into animals and birds, especially predatory birds associated with flight, hunting, and the crossing of worlds.
The Chakrasamvara Tantra belongs to the Yogini Tantras, a class of Buddhist tantras that emerged in medieval India between the eighth and twelfth centuries. These texts were tied to charnel-ground cults, wandering siddhas, and yogini circles that existed at the edge of settled religious life. David B. Gray notes that the Chakrasamvara system was deeply connected with yogini cults and with rites considered transgressive even within Indian Buddhism.[1] The tantric world described in these texts was not symbolic in the modern literary sense. Spirits, dakinis, flesh-offerings, flight, possession, and bodily transformation were treated as concrete possibilities.
The language surrounding yoginis and dakinis is especially important because these beings were repeatedly linked to shape-changing and aerial movement. Traditional tantric vocabulary uses terms such as khecari, meaning “sky-goer” or “sky-traveler.” The yogini was understood as a being capable of moving between human and nonhuman forms, crossing physical and subtle worlds. Medieval Shaiva and Buddhist tantras describe yoginis with animal heads, bird forms, or hybrid bodies. The scholar Shaman Hatley writes that yoginis were associated with “actual shapeshifting” and with the power of flight.[2] The same literature links them to cremation grounds, nocturnal rites, and transmission of forbidden knowledge.
These themes appear in Buddhist tantric systems connected to Chakrasamvara. The dakini was not simply a poetic figure. In Tibetan commentarial traditions, dakinis could appear as women, animals, spirits, or wrathful beings encountered during ritual practice and visionary states. Judith Simmer-Brown notes that advanced tantric systems described an “outer” dakini attained through completion-stage practices involving the subtle body and its energetic transformations.[3] For advanced siddhas (tantric masters), visionary identification with animal or deity forms could culminate in actual transformation.
The Chakrasamvara cycle itself preserves traces of older tribal and shamanic material absorbed into Buddhist tantra. (For reference see my previous article titled Tantra’s Hidden Origins: Magicians, Sorcerers, and the Non-Literate World of Ancient India). The central deity Heruka stands amid cremation grounds, wearing bone ornaments and trampling Hindu deities beneath his feet. The mandala contains circles of dakinis and yoginis who embody wild and dangerous forces. Several female tantric figures connected to the tradition take animal forms. Vajravarahi herself appears with the head of a sow projecting from her temple. Animal-headed yoginis appear throughout related tantric iconography, especially in the yogini cults that influenced the Yogini Tantras.[4]
What matters here is that medieval tantric practitioners understood bodily identity as fluid. Ritual identification with a deity was already considered a real alteration of consciousness and subtle embodiment. Certain siddhis pushed this much further. Tantric manuals across both Buddhist and Shaiva traditions contain rites for invisibility, flight, entering another body, controlling spirits, and assuming alternate forms. The line between spirit possession and shapeshifting was often thin.
The predatory bird carries special weight in this material. Birds of prey appear in tantric symbolism as beings that move between earth and sky, life and death. Dakinis themselves were frequently linked with vultures, hawks, crows, owls, and carrion birds associated with cremation grounds. Tibetan art and ritual literature preserve many examples of wrathful female spirits with wings, claws, and avian features. The Tibetan term for dakini, khandroma, literally means “sky-goer.” This idea of aerial movement was not seen as fantasy. The ability to leave the body, travel through the sky, or assume bird form were skills that belonged to the siddhas’ reperatoires across India and Tibet.
Accounts surrounding the eighty-four mahasiddhas strengthen this point. These wandering tantric adepts were credited with powers that included levitation, bodily transformation, magical travel, and command over animals. Hagiographies describe siddhas appearing in unexpected forms or vanishing from ordinary sight. Luipa, one of the central figures in the Chakrasamvara transmission lineage, practiced in charnel grounds and was linked with yogini initiations involving antinomian rites.[5] These stories were preserved by tantric communities as records of attainment rather than allegories.
Parallels with Indigenous traditions elsewhere are difficult to ignore. Among several Native American nations, especially in the Plains and Subarctic regions, ritual specialists described experiences of animal transformation tied to spirit travel, hunting magic, warfare, and visionary initiation. Eagle and hawk transformations carried particular importance because birds of prey were regarded as mediators between human beings and the upper worlds. Some ceremonial societies taught that a practitioner could spiritually become the animal whose power had entered him. Similar beliefs existed among Siberian shamans, Mongolian spirit-mediums, and Central Asian ecstatic traditions.
There are important differences between these cultures, and they should not be collapsed into a single universal system. Buddhist tantra emerged within the religious environment of India, drawing from Shaiva, tribal, yogic, and cremation-ground traditions. Native American ceremonial systems developed independently within their own spiritual landscapes. Yet the recurrence of animal transformation, flight, spirit embodiment, and predatory bird symbolism across cultures suggests that these experiences belong to a wider stratum of ritual consciousness.
Modern scholars usually interpret shapeshifting language symbolically because the academic world has little room for the supernatural claims made in tantric texts. Yet even cautious historians admit that medieval tantric practitioners themselves believed siddhis were real attainments. The Chakrasamvara Tantra emerged within circles that accepted spirit contact, magical rites, visionary encounters, and bodily transformation as part of advanced practice.[6]
Reports of shapeshifting and animal embodiment did not disappear with the medieval world. In Himalayan regions, parts of Nepal, India, Mongolia, and Tibet, stories about yogis taking animal form still circulate among practitioners and villagers. Similar accounts continue among Indigenous ceremonial traditions in the Americas. Outsiders may dismiss such claims as folklore, hallucination, or symbolic storytelling, but the communities preserving them rarely make such distinctions. For them, the spirit world remains actively dangerous, and immediate.
The modern tendency to sanitize tantra has hidden much of this material. Popular books often frame Vajrayana as a system of abstract psychology wrapped in exotic symbolism. The older texts present something more unsettling. The siddha was expected to cross thresholds ordinary society feared. Cremation grounds, possession states, sexual rites, communion with dakinis and demons, and shape-changing powers formed part of the same ritual landscape. The Chakrasamvara Tantra did not emerge from a polite monastery culture detached from magic. It emerged from circles that believed reality itself could be bent through disciplined contact with forces most people feared and avoided.
Footnotes
[1] David B. Gray, The Cakrasamvara Tantra: The Discourse of Sri Heruka (New York: American Institute of Buddhist Studies, 2007).
[2] Shaman Hatley, cited in “Yogini,” Wikipedia, discussing yogini traditions and shapeshifting associations. (en.wikipedia.org)
[3] Judith Simmer-Brown, discussed in “Dakini,” Wikipedia. (en.wikipedia.org)
[4] “Yogini Temples,” discussion of theriomorphic yoginis and tantric transformation motifs. (en.wikipedia.org)
[5] Alexander Berzin, “What Is Chakrasamvara Practice?” discussing Luipa and Chakrasamvara transmission traditions. (studybuddhism.com)
[6] “Cakrasamvara,” Encyclopedia.com, describing the Yogini Tantras and their transgressive ritual framework. (encyclopedia.com)
Tantric Deception 