Bhagavad Gītā Chapter 4, Verse 28: Krishna to Arjuna — Jñāna-Karma-Sannyāsa-Yoga

Bhāṣyakāra purports

• Śaṅkaraadvaita

  Śaṅkara reads this verse as a systematic taxonomy of yajña (sacrifice) forms, each named by what is offered rather than what is sought. Those who distribute wealth at sacred fords perform dravya-yajña (material sacrifice); the austere ones make tapas (austerity) itself the oblation; practitioners of prāṇāyāma and pratyāhāra make yoga the altar-fire. Svādhyāya-yajña (recitation-sacrifice) covers rigorous Vedic repetition, while jñāna-yajña (knowledge-sacrifice) denotes mastery of śāstric meaning — all performed by strivers whose vrata (vow) has been sharply honed, made tīkṣṇa (keen), never blunted by desire for fruit.

  divergence: Śaṅkara's bhāṣya directly names: tīrtheṣu dravya-viniyogaṃ yajña-buddhyā — material outlay with sacrifice-intention; prāṇāyāma-pratyāhārādi-lakṣaṇo yogaḥ; śāstrārtha-parijñānaṃ jñānam; saṃśita = saṃyak śitāni tīkṣṇīkṛtāni — vows made razor-sharp.

• Rāmānujaviśiṣṭādvaita

  Rāmānuja sees each category of sacrificer as a karma-yogin engaged in a distinct mode of kainkarya (dedicated service) to Bhagavān. Dravya-yajñins lawfully gather wealth and deploy it in deva-arcana (divine worship), dāna (gift), and homa (oblation-fire) — material abundance returned to its source. Tapo-yajñins take on kṛcchra-cāndrāyaṇa and fasting as their discipline; yoga-yajñins here means those dedicated to reaching sacred tīrthas and puṇya-sthānas (holy sites), not merely seated samādhi. All such strivers, firm in saṅkalpa (resolve), steadily purify the antaḥkaraṇa (inner instrument) for eventual bhakti-yoga.

  divergence: Rāmānuja specifies deva-arcana, yāga, and homa as sub-types of dravya-yajña; glosses yoga-śabda here as karma-niṣṭhā-bheda (a variety of engaged discipline), not merely aṣṭāṅga-yoga; and reads saṃśita-vrata as dṛḍha-saṅkalpa — firm intentionality.

• Madhvadvaita

  Madhva's laconic bhāṣya strips every category down to a single principle: whatever is offered is an oblation into Parameśvara (the Supreme Lord), and the offering-act itself constitutes the homa (fire-oblation). Dravya-yajñins pour material goods; tapo-yajñins pour austerity with paramēśvarārpaṇa-buddhi (the intention of dedication to the Lord); even tapas is treated as the havis (oblation-substance) cast into Brahma's fire solely for His worship — tad-pūjārtham. No act is self-willed; each is dependent service of Hari.

  divergence: Madhva: idaṃ tapo haviḥ — this austerity is the oblation-substance; tad-brahma-agnau juhoti — offered into that Brahma-fire; tad-arpaṇa eva homa-buddhiḥ — the fire-offering consciousness is nothing but dedication to Him.

• Vallabhaśuddhādvaita

  Vallabha distributes the verse across āśramas (life-stages): gṛhastha (householder) practitioners are the dravya-yajñins; vānaprasthas (forest-dwellers) are the tapo-yajñins. Yoga-yajña is precisely citta-vṛtti-nirodha (the cessation of mental modifications) in samādhi-form — the highest interior offering. Svādhyāya-yajñins and ātma-jñāna-yajñins are the renunciant seekers. All these yatīs (strivers) with sharp vows represent the full spectrum of paths by which Kṛṣṇa's own śakti (power) returns to itself through apparently distinct practitioners.

  divergence: Vallabha explicitly maps: gṛhiṇo = dravya-yajñāḥ; vāna-sthāḥ = tapo-yajñāḥ; yoga = citta-vṛtti-nirodha; samādhi-lakṣaṇo yajñaḥ; ātma-jñāna-yajñāḥ as the inner renunciant category.

• Śrīdharabhakti

  Śrīdhara Svāmī gives the verse a clean philological reading: each compound names the practitioner by what they have turned into yajña. Dravya-dāna (material giving) alone is the sacrifice for one group; kṛcchra-cāndrāyaṇādi (severe austerity-forms) for another; citta-vṛtti-nirodha-lakṣaṇa samādhi (samādhi defined by mental-modification cessation) is yoga-yajña. For svādhyāya he offers an explicit alternative: either Vedic recitation itself or the resulting śravaṇa-manana (hearing and reflection) on that meaning constitutes two distinct sub-types of jñāna-yajña. Vrata is niśita — sharpened, made keen — not merely kept.

  divergence: Śrīdhara gives athavā (alternatively) construction: veda-pāṭha-yajñās and tad-artha-jñāna-yajñāś ca iti dvividhāḥ — two sub-types explicitly named. No HTML/JS artifacts present in this payload; bhāṣya is clean Sanskrit prose.

• Madhusūdanaadvaita-bhakti

  Madhusūdana offers the fullest synthesis: he counts six yajñas in this single verse where previous commentators counted five across the prior three. Dravya-yajña splits into pūrta (public works — wells, tanks, temples) and datta (gifts — food, refuge, nonviolence) drawing on Smṛti citation. Yoga-yajña receives the complete aṣṭāṅga enumeration with precise definitions: yama as the five restraints (ahiṃsā, satya, asteya, brahmacarya, aparigraha); niyama as five observances (śauca, santoṣa, tapas, svādhyāya, Īśvara-praṇidhāna). Saṃśita-vrata receives the Patañjali citation — mahā-vrata as the restraints unconditioned by jāti, deśa, kāla, samaya — absolute across all circumstances.

  divergence: Madhusūdana cites Smṛti for pūrta/datta distinction; fully enumerates aṣṭāṅga-yoga with verse-cross-references within BG itself (pratyāhāra at 4.26, dhāraṇā-dhyāna-samādhi at 4.27, prāṇāyāma at 4.29); invokes Patañjali YS 2.31 (jāti-deśa-kāla-samayānavacchinnāḥ sārvabhaumā mahā-vratam).