Bhagavad Gītā Chapter 3, Verse 21: Krishna to Arjuna — Karma-Yoga
Whatever a great person does, others do too; whatever standard that person sets, the world follows.
Bhāṣyakāra purports
- Śaṅkaraadvaita
Whatever action (karma) the foremost person (śreṣṭha) performs, the common person follows that very action — not out of independent discernment but out of gravitational imitation. Further, whatever standard (pramāṇa) — whether worldly (laukika) or Vedic (vaidika) — the śreṣṭha establishes, the world (loka) treats that alone as authoritative. This is precisely why Kṛṣṇa turns the argument back on Arjuna: if even a jñānī who has transcended result-seeking must act for loka-saṃgraha (upholding the world's fabric), how much more binding is that obligation on a kṣatriya-king who has not yet crossed to the far shore of jñāna.
divergence: For Śaṅkara the śreṣṭha's authority is instrumentally useful for loka-saṃgraha; the ultimate end remains jñāna, not exemplary action as a terminal value.
- Rāmānujaviśiṣṭādvaita
The śreṣṭha here is specifically he who is known both as a complete knower of śāstra (kṛtsna-śāstra-jñātṛ) and as a scrupulous practitioner (anuṣṭhātṛ) — not merely an intellectual authority. When such a person performs karma with all its prescribed auxiliaries (aṅgas), the ignorant (akṛtsnavid) follow that very form of practice, aṅgas and all. Therefore the person of established excellence (śiṣṭa) bearing social-ritual responsibility must perform varnāśrama-appropriate karma completely and always — for failing to do so generates the sin of loka-nāśa (world-destruction), which would dislodge even one on the path of jñāna-yoga.
divergence: Unlike Śaṅkara, Rāmānuja insists karma is not merely preparatory but constitutive of bhakti-yoga; exemplary action binds the community of jīvas to Bhagavān through the śreṣṭha's mediating role.
- Madhvadvaita
*Yad yad ācarati śreṣṭhas tat tad evetaro janaḥ* — whatever the eminent one does, the ordinary person does likewise; *sa yat pramāṇaṃ kurute lokas tad anuvartate* — whatever standard he establishes, the world follows it. Madhva reads *sa yat pramāṇaṃ kurute* through the gloss *yad vākyādikaṃ pramāṇīkurute yad ukta-prakāreṇa tiṣṭhati*: the śreṣṭha does not merely perform an act but, through speech and conduct, makes known as *pramāṇa* what the common people had not recognized as such. Jayatīrtha sharpens this: the *yat* in *sa yat pramāṇaṃ kurute* picks out the śreṣṭha's utterances and acts that are already *pramāṇa* in themselves, even if unrecognized; the śreṣṭha's function is to disclose that authority to those who would otherwise miss it — *tat pramāṇatayā jñāpayati*. The reading holds whether one takes *yat* as qualifying a single act (*ekam idam evaṃ pramāṇakaṃ karma*) or the full range of the śreṣṭha's conduct. Because the *jīva* is *paratantra* (eternally dependent) and *bheda* (real distinction) between Hari and *jīva* is irreducible, the śreṣṭha's *pramāṇa*-establishing power is itself derivative of Hari's ordering will; *anuvartatе* names the world's recognition of a hierarchy it did not initiate.
divergence: Madhva's bhāṣya is terse; Jayatīrtha's *Nyāya-sudhā* carries the epistemological weight, distinguishing the case where *pramāṇa* is already present in the śreṣṭha's speech from any attempt to 'make' something authoritative by fiat. The *pañca-bheda* structure situates this epistemology: *śabda-pramāṇa* as the highest instrument reflects Hari's own testimony operating through the exemplary devotee.
- Vallabhaśuddhādvaita
*Yad yad ācarati śreṣṭhaḥ* — whatever the eminent one does, that alone the rest of humanity follows; whatever *pramāṇa* (authoritative standard) he establishes, the world conforms to it. In *puṣṭi-mārga* (the path of grace), the *śreṣṭha* is not merely a moral exemplar but Kṛṣṇa Himself, whose every act is *līlā* (divine play) and whose every movement is *prasāda* (grace-overflow) sustaining the world. The ordinary *jīva* (individual self) does not imitate from the outside by volitional effort; rather, it is drawn along by the current of Kṛṣṇa's own nature flowing through the eminent one. *Anuvartate* — the world 'follows after' — names not deliberate mimicry but participation in divine *pravāha* (flow). The *pramāṇa* Kṛṣṇa establishes is not a rule imposed from without; it is the self-manifesting standard of Brahman's own real and gracious self-expression in the world, for in *śuddhādvaita* the world is no *māyā*-projection but Brahman's genuine manifestation. *Sevā* (loving service) of such a śreṣṭha is therefore itself the path: to follow is to be carried by grace.
divergence: Vallabha's recorded gloss is two words (*yad yad iti*), pointing to the verse as self-evident ground. The reading is reconstructed from *puṣṭi-mārga* and *śuddhādvaita* siddhānta applied directly to the mūla.
- Śrīdharabhakti
For the sake of loka-saṃgraha — upholding the coherence of worldly order — the ordinary person (prākṛta jana) follows exactly whatever the śreṣṭha does. Further, whether the śreṣṭha takes karma-śāstra or nivṛtti-śāstra as his operative standard (pramāṇa), the loka follows that standard too. Śrīdhara's balanced reading refuses to flatten the verse into a merely political teaching: the śreṣṭha's normative power extends across both engagement (pravṛtti) and renunciation (nivṛtti) domains, and the loka tracks whichever register the exemplar inhabits.
divergence: Śrīdhara's synthesis is notably even-handed — he does not subordinate action to jñāna (as Śaṅkara) or insist on aṅga-completeness (as Rāmānuja). The bhakti register keeps the example-setting function devotionally open: the śreṣṭha's life itself becomes an act of seva to the community.
- Madhusūdanaadvaita-bhakti
Madhusūdana stages the verse as an answer to a live objection: if I (Kṛṣṇa) were to act, why would the world follow Me? The answer: because the prākṛta person (common folk) lacks independent discernment and follows the śreṣṭha — king or other leading figure — whether that leader's action is auspicious (śubha) or inauspicious (aśubha). A further objection arises: why not simply consult śāstra and discard the śreṣṭha's possibly non-scriptural conduct? Madhusūdana's reply: even in matters of normative conduct (ācāra), the common person follows the śreṣṭha's determination of what counts as pramāṇa — laukika or vaidika — not any independent reading of śāstra. Arjuna as rājā is therefore constitutively a śreṣṭha: his public action shapes the epistemic and ethical world of the loka.
divergence: Madhusūdana uniquely foregrounds the epistemological danger: since the common person's very sense of pramāṇa is shaped by the śreṣṭha, an irresponsible exemplar corrupts not just behavior but the community's capacity for normative judgment itself.