Bhagavad Gītā Chapter 2, Verse 50: Krishna to Arjuna — Sāṅkhya-Yoga
Joined to steady wisdom, a person sheds both merit and sin in this very life; so commit to yoga, for yoga is skill in action.
Bhāṣyakāra purports
- Śaṅkaraadvaita
One who is buddha-yukta (endowed with equanimity-intelligence) abandons here both puṇya (merit) and pāpa (demerit) through the portal of sattva-śuddhi (purification of mind) leading to jñāna-prāpti (attainment of knowledge) — not as moral achievement but as the natural falling-away of what never bound the self. Kauśalam (skill) is not technical dexterity but the precise capacity of samatva-buddhi (equanimity-intelligence) to prevent even svadharma-karman from accruing the bondage it carries by nature: karma performed with īśvara-arpaṇa-cetasā (mind surrendered to the Lord) ceases to bind, as if denatured. Therefore commit to yoga not as a path toward something but as the release from the assumption that action is yours — for that assumption alone is the binder.
- Rāmānujaviśiṣṭādvaita
The jīva (individual soul) yoked to buddhi-yoga in action discards both pāpa and puṇya — not merely their future accumulation but the anādi-kāla-sañcita (beginninglessly accumulated) stock that forms the anaṇta-bandha (infinite bondage) keeping the jīva from Bhagavān. Kauśalam here carries Rāmānuja's gloss atisāmarthya (supreme efficacy) — it is not mere adroitness but the extraordinary power that makes karma capable of an end far beyond its own reach, namely, bhagavat-prāpti (attainment of Bhagavān). Buddhi-yoga is thus kauśalam in the sense that it is the supremely potent means — an efficacy not inherent in the action itself but granted by the action's orientation toward Bhagavān as the final upāya (means) and upeya (end).
- Madhvadvaita
The jñāna-phala (fruit of knowledge) announced here is that the buddha-yukta jīva abandons even suktṛa (meritorious karma) insofar as it yields mānuṣyādi-phala (human-scale results) — not the bṛhat-phala (great fruit) accruing from upāsanā (meditation) and worship of Hari, which śruti (revealed scripture) explicitly protects: na hāsya karma kṣīyate (his karma does not perish, BU 1.4.15). Kauśalam for Madhva is thus the skill of discriminating which karma to abandon (karma seeking perishable reward) from which to magnify (karma as sevā to Hari), since the jīva is nitya-bhinna (eternally distinct) from Brahman and its actions can only attain liberation through Hari's prasāda (grace), never through any independent jñāna-bhāva (state of knowledge) that would erase the jīva's individuality.
- Vallabhaśuddhādvaita
Vallabha reads kauśalam as nirbandhnatā-vṛtti-sādhana (the discipline that produces the condition of non-bondage) — the skill is in becoming nirbandha (free from binding-force) while remaining in the very stream of Kṛṣṇa's guṇa-āviṣkaraṇa (manifestation of qualities), for Śuddhādvaita holds that Kṛṣṇa's world is not māyā (illusion) to be renounced but his own svarūpa (essential nature) to be participated in. Puṇya and pāpa are abandoned as suvarṇa-loha-bandhana-tulya (equivalent to bondage whether the chain is gold or iron) — the Puṣṭi-mārga practitioner does not choose between virtuous and sinful action but exits the entire economy of action-as-transaction, receiving karma as Kṛṣṇa's līlā-prasāda (grace-play). The buddhi-yukta state is thus the state of the bhakta who is carried rather than one who chooses.
- Śrīdharabhakti
Śrīdhara clarifies the two terms precisely: suktṛa (meritorious karma) leads to svarga (heaven) and higher realms; duṣkṛta (demeritorious karma) leads to naraka (hell) — and both are abandoned iha janmani (in this very life) by paramaiśvara-prasāda (the grace of the Supreme Lord), not through one's own effort alone. Kauśalam is the cāturya (adroitness) of converting karma that is by nature bandhaka (binding) into a vehicle for mokṣa-paratva-sampādana (achievement of liberation-orientation) through īśvara-ārādhana (worship of the Lord). The defining move of bhakti kauśalam is not withdrawing from action but transforming its valence: the same action that binds when offered to the ego liberates when offered to the Lord — skill as transmutation rather than renunciation.
- Madhusūdanaadvaita-bhakti
Madhusūdana holds two readings simultaneously: in the first, buddhi-yukta describes one already in samatva (equanimity) whose karma produces sattva-śuddhi, which in turn yields ātma-sākṣātkāra (direct realization of the self), leading to the natural abandonment of puṇya-pāpa — karma-yoga as the śuddhi-dvāra (portal of purification). In the second, buddhi-yoga itself, when it has ripened, is mahā-kuśala (supremely skillful) because it accomplishes the destruction of duṣṭa-karma (corrupted karma) while remaining action — a kauśalam Madhusūdana marks with the resonant phrase: samata-buddhi-yukta karmayoga karmaātmā api san duṣkarma-kṣayaṃ karoti (karma-yoga, though itself action, destroys evil karma), which neither pure jñāna-mārga nor pure karma-mārga alone achieves. The synthesis here is not conceptual but functional: Kṛṣṇa-bhakti supplies the arpita-cetasā (mind-surrendered-to-Kṛṣṇa) that alone makes samatva genuinely non-performative.