The Jaiminīya Upaniṣad Brāhmaṇa (JUB), an early Sāma-Veda Upaniṣad probably coeval with the BU (8th century BCE or thereabouts), contains a passage that may be one of the most overlooked load-bearing texts in the entire Sanskrit corpus. White uses it to anchor the BhG 15.15 doctrine of the three puruṣas and to map the operational architecture that grounds the entire later yogi-perception tradition.1
The JUB sets up the architecture in stages. First the cosmological claim: the sun is threefold. It has a white form (identified with fire, identified with death), a black form, and a puruṣa form (identified with breath and brahman, identified with immortality). The threefold sun is what advances toward immortality across the sky.1
Then the anthropological claim: the eye is threefold in the same way as the sun. Its three forms are the same three forms — white, black, puruṣa. The eye's puruṣa form is identified with the same breath-brahman-immortality as the sun's puruṣa form. They are the same puruṣa operating at the two ends of the perceptual architecture.
Then the crucial claim. There are three persons:
The one who is in the eye — this is the con-forming (anu-rūpa) one, "because it follows in the direction of all forms... All forms indeed follow after it."
The one who is in the ray — this is the supreme puruṣa — the puruṣa "who has all forms," who is breath, immortality, brahman.
The one who is in the sun — this is the surpassing puruṣa — the "likeness" (pratirūpa — "counter-form") of the puruṣa in the eye.1
Three puruṣas on one beam of light. Eye-puruṣa at the human end, taking all forms. Sun-puruṣa at the cosmic end, counter-forming the eye-puruṣa. Ray-puruṣa between them, containing all forms, who is the brahman.
The JUB architecture is doing remarkable work for an 8th-century BCE text. Three interlocking claims.
Claim 1: The cosmic and the anthropological are structurally identical. The sun has three modes; the eye has three modes; the modes correspond. This is the strong-form fractal claim: the inside and the outside are the same architecture at different scales.
Claim 2: The perceptual operation connects the two scales by a third element — the ray. The ray is not just the path between eye and sun; it is its own puruṣa. The ray-puruṣa is the supreme puruṣa — "the one that has all forms" — and is the brahman. The connecting medium is ontologically prior to the two endpoints. The ray is what is; the eye and the sun are its localized modes.
Claim 3: The eye-puruṣa is the con-forming one (anu-rūpa). The eye-puruṣa takes the form of whatever it perceives. This is the prāpyakāri architecture in proto-form, fifteen hundred years before the Nyāya-Vaiśeṣika formalization. The eye does not receive; it con-forms — takes the shape of what it goes out to.
White's reading: this is the seed of the entire later yogi-perception doctrine. Every later text on supernatural perception, yogic body-entry, prāpyakāri operation, yogi-pratyakṣa — is operating on the substrate the JUB three-puruṣas passage establishes. The architecture is fully present in the 8th-century BCE text. The medieval scholastic systems are crystallizing what the JUB already had.
The connection to BhG 15.15–19 is direct. Kṛṣṇa teaches three puruṣas: the perishable puruṣa that dwells in every creature's heart, the imperishable puruṣa that is "seated in the peak" (kūṭastha), and the supreme puruṣa, with which Kṛṣṇa identifies himself as the eternal master who has penetrated the three worlds.1 The BhG's three-puruṣa doctrine is structurally identical to the JUB's three-puruṣa doctrine. The BhG is reading the JUB's architecture into Kṛṣṇa's theological frame. White: "This language may also be linked to the trilocation of the puruṣa in BU 4.3.9: this world of waking reality, the other world of deep sleep, and the 'place of dreams' which corresponds to the atmosphere."1
The architecture is doing logical work the two-end (eye-sun) architecture cannot do.
A two-end architecture has the medium as merely the path. The ray is what light moves through to get from sun to eye (or, in prāpyakāri, from eye to sun). The medium has no ontological weight; it is just the conduit.
The three-person architecture gives the medium ontological status. The ray is not just a path. The ray is its own puruṣa — and the supreme puruṣa at that. The medium is more fundamental than the endpoints. The eye-puruṣa and the sun-puruṣa are localized modes of the ray-puruṣa.
This solves a structural problem. How are the eye and the sun connected as identical fractal counterparts? The two-end architecture has them as separate puruṣas that happen to mirror each other. The three-person architecture has them as modes of one ray-puruṣa — the same puruṣa appearing as eye at the human end and as sun at the cosmic end. The connection is not external coordination but internal identity.
This is the metaphysical ground of the prāpyakāri operation. The eye can go out and take the form of the pitcher because the eye-puruṣa is already a mode of the ray-puruṣa, which has all forms. Going out is just deploying what the ray-puruṣa already contains. Perception is recognition of a form the ray-puruṣa already includes, taken up in the localized eye-puruṣa mode.
This is also the metaphysical ground of yogi-pratyakṣa. The supreme perception of the trained yogi is the perception that operates at the ray-puruṣa level rather than just at the eye-puruṣa level. The ordinary practitioner perceives in eye-puruṣa mode (limited reach, limited form-uptake). The yogi perceives in ray-puruṣa mode (all forms, unlimited reach). The difference is not category but depth of operation.
This page is the architectural seed the vault traces for the entire later yogi-perception tradition. Whenever a Sanskrit text invokes a three-puruṣa doctrine, names a "supreme puruṣa" who has all forms, or describes the ray-mediated perception architecture — the page tracing the seed is this one. The JUB is fifteen hundred years prior to the medieval crystallizations; reading the medieval material against this seed makes its continuity visible.
It also gives the vault the proto-version of the prāpyakāri + yogi-pratyakṣa double architecture. The JUB's eye-puruṣa as anu-rūpa (con-forming) is prāpyakāri in seed form. The ray-puruṣa as having-all-forms is yogi-pratyakṣa in seed form. The two doctrines are already linked in the JUB; the medieval traditions inherit the link.
The BhG 15.15–19 passage is the most consequential downstream use of the JUB architecture. Kṛṣṇa's three puruṣas (perishable / imperishable-kūṭastha / supreme) map onto the JUB's three puruṣas (eye / sun / ray) but with sectarian reframings.
The perishable puruṣa of BhG 15.16 corresponds to the JUB's eye-puruṣa — the localized, con-forming, mortal mode that lives in creatures' hearts. The imperishable puruṣa of BhG 15.16 corresponds to the JUB's sun-puruṣa — the cosmic, surpassing, counter-forming mode that is "seated in the peak." The supreme puruṣa of BhG 15.17 corresponds to the JUB's ray-puruṣa — the one who has all forms, who is brahman, who has penetrated the three worlds. Kṛṣṇa identifies himself with this supreme puruṣa.
The BhG's move is to name the ray-puruṣa Kṛṣṇa. The metaphysical architecture is preserved; the deity-naming is the Vaiṣṇava sectarian engineering on top of the inherited Upaniṣadic frame. Kṛṣṇa is the supreme puruṣa with all forms — which is why he can show Arjuna his cosmic form in BhG 11. The cosmic form is the ray-puruṣa's all-forms property, revealed.
This makes the BhG's theology intelligible in a way it is not without the JUB substrate. Kṛṣṇa is not just a god making metaphysical claims; he is identifying himself with the medium of the JUB's perceptual architecture. His all-forms property is structural — it is what the supreme puruṣa is. His penetration of the three worlds is structural — the ray-puruṣa connects the three modes by being all of them. The BhG's apparently devotional doctrine is actually Upaniṣadic metaphysics dressed in sectarian-theological vocabulary.
You read JUB chapters 1.28–1.30 (the locations of the three-puruṣa passage) in van Buitenen's or Oertel's translation. You read BhG 15.15–19 in any reliable translation. You hold the two side by side.
What you notice: the structural identity is striking once visible. The JUB three-puruṣa doctrine and the BhG three-puruṣa doctrine are the same architecture. The BhG is wrapped in Kṛṣṇa-devotional frame; the JUB is in older Upaniṣadic-Vedic frame. The architecture they share is older than either text's theological vocabulary.
You think about what this does for reading the BhG. If Kṛṣṇa's identification with the supreme puruṣa is structural (he is naming himself the ray-puruṣa of the JUB architecture), then BhG 15 is not making a new theological claim; it is making a very old metaphysical claim under a new devotional name. The BhG is asking you to recognize the supreme puruṣa as Kṛṣṇa. The recognition is sectarian; the underlying architecture is shared with all Upaniṣadic traditions.
You sit with this. You let the JUB substrate inform your reading of the BhG. The BhG's claims become more grounded — they are reading a known metaphysical architecture, not inventing one from scratch. They are also more historically situated — they are doing a specifically Vaiṣṇava engineering on shared substrate material, parallel to what the Śaivas were doing with the same substrate at the same period.
This is the practice the historical reading makes possible. Recognition of substrate-continuity across sectarian theological reformulations. The shared substrate makes the sectarian variations legible as variations rather than as competing free-standing theologies.
The failure mode is reading the JUB three-puruṣa doctrine as primitive cosmology that the medieval scholastic systems transcend. The JUB doctrine is not primitive; it is foundational. The medieval crystallizations are doing systematic work on top of it, but they do not transcend it. They unfold what the JUB already contained.
Diagnostic sign: you can describe the medieval yogi-perception tradition but cannot trace it back to its 8th-century BCE Upaniṣadic seed.
The honest reading sees the seed. The JUB three-puruṣa doctrine is the architectural source. The Nyāya-Vaiśeṣika prāpyakāri and yogi-pratyakṣa formulations are the crystallized engineering. The BhG's three-puruṣa Vaiṣṇava theology is the sectarian deployment. All three are one tradition with different historical layers, not separate doctrinal positions.
White cites the JUB passage directly via Oertel's translation.1 The connection to BhG 15.15 and BU 4.3.9 is White's contribution; the broader Indological tradition has noticed these connections but White integrates them into the yoga-history project explicitly.
The first tension is whether the JUB originated the three-puruṣa architecture or inherited it from an even older substrate. The Ṛg Veda contains scattered references to multi-puruṣa cosmologies (the Puruṣa Sūkta at RV 10.90, the seven-rays-and-seven-reins material at AV); the JUB may be systematizing these earlier scattered references rather than inventing the architecture. The dating is too coarse to resolve definitively.
The second tension is the relationship between the JUB three-puruṣa doctrine and the Sāṃkhya puruṣa-prakṛti dualism. The JUB is not dualist in the Sāṃkhya sense; its three puruṣas are modes of one supreme puruṣa rather than distinct ontological categories. The Sāṃkhya systematization is a later doctrinal development that uses related vocabulary in a categorically different framework.
The third tension is whether BhG 15's three-puruṣa doctrine is consciously drawing on the JUB or independently developing a parallel architecture. The structural identity is too strong to be coincidence; some form of textual or tradition-mediated influence is likely. But the exact mechanism (direct citation, broader Vedic-Upaniṣadic tradition, common substrate without direct dependence) is not crisp in the evidence.
White and the broader Indological tradition converge on reading the JUB passage as foundational. White's distinctive contribution is to connect it to the broader yoga-history project — the JUB three-puruṣa architecture is the substrate the medieval yogi-perception traditions crystallize from.
Samuel's two-period thesis adds chronology.Samuel — Two-Period Thesis The JUB material sits in Samuel's very early substrate-period (8th century BCE, well before the formative crystallizations of the 4th-2nd century BCE). The architecture is deep substrate — present at the foundation of the Upaniṣadic period, available for systematization across the entire subsequent millennium and a half.
The convergence with Prāpyakāri Projective Theory and Yogi-Pratyakṣa is structural and necessary. The three pages together constitute the vertical depth of the yogi-perception doctrine: JUB seed (deep substrate) → Nyāya-Vaiśeṣika prāpyakāri (operational architecture) → Praśastapāda yogi-pratyakṣa (epistemological grounding). The medieval scholastic doctrine is the crystallized form of what the JUB already contained as architectural seed.
The architectural insight — that a perceptual operation involves three ontological levels (localized perceiver, localized object, supreme medium-as-container-of-all-forms) — translates across domains where the Sanskrit reference is not available.
Psychology: Observer / Observed / Observation Three-Pole Architecture — Contemporary contemplative psychology distinguishes the observer (the noticing subject), the observed (the noticed object), and the observation itself (the awareness that contains both poles). Tibetan Mahāmudrā traditions name this "ground awareness" (rigpa); Advaita names it sākṣī (the witness); the JUB names it the ray-puruṣa or supreme puruṣa. The structural identity is striking. The three-pole architecture is what allows non-dual practices to make their characteristic move: identification with the medium rather than with the observer or the observed. The Sanskrit case provides the most sophisticated articulation of the architecture and the metaphysical grounding the move requires.
Behavioral mechanics: Operator-Target-Channel Three-Pole Influence — Influence operations have three poles: the operator, the target, and the channel through which influence flows. Naive influence theory treats the channel as merely the medium (the conversation, the message). The JUB-style architecture suggests the channel itself is the load-bearing entity — it has all the forms — and the operator and target are localized modes of the channel's broader form-having capacity. Skilled operators report that operating the channel is more powerful than operating the message; the channel-as-ontologically-prior reading sharpens what they intuit operationally. The Sanskrit case provides the architectural justification: the medium has primacy over the endpoints.
The Sharpest Implication
If the JUB three-puruṣa doctrine is the substrate the entire later yogi-perception tradition crystallizes from, then the Anglophone yoga tradition's engagement with the BhG (which is the one JUB-substrate text that most modern readers encounter) is engaging the surface theology without the substrate architecture. The implication that cuts: BhG 15's apparently devotional doctrine of three puruṣas is not a Vaiṣṇava theological claim; it is a very old Upaniṣadic metaphysical architecture with a Vaiṣṇava deity-name attached. Reading the BhG without the JUB substrate misses what BhG 15 is actually doing.
Generative Questions