Advaita Vedānta

For these commentators the 'dharma' praised here is the yoga of action understood as the path to liberation, and the verse answers a precise objection raised by Vedic ritual logic. The worry is that prescribed rites are too many to complete in one life, and that a defect in any subsidiary part of a rite spoils it, so how could action ever loosen bondage? The answer is that when fixed rites are turned toward the desire-to-know the Self, their fruit becomes inner purity, which is the destruction of sin and not a consumable 'world' that can be exhausted. Read this way, there is no loss because purity is not perishable, and no defect-penalty because the rite is now serving knowledge rather than a worldly aim. The technical principle invoked is that the same scriptural acts apply, by separate application, both to ordinary fruit and to the seeking of knowledge.

Śaṅkarācārya · Śrī Ānandagiri · Madhusūdana Sarasvatī · Śrī Nīlakaṇṭha · Dhanapati Sūri

Viśiṣṭādvaita

These commentators read 'loss' with a fine precision: what is not lost is the disposition that is the means to the fruit, the inner orientation built up by the practice. So even effort that is broken off and never finished is not without fruit, and breaking it off incurs no sin. They sharpen the contrast by saying that other means, both worldly and Vedic, do the opposite: when broken off they bear no fruit and they do bring sin. One source carefully places this verse in the flow of the chapter, treating it as raising longing for the path by first declaring its greatness, and noting that an interrupted practice, whether stopped by failures of place and time or by accidental lapse, must simply be taken up again rather than counted as ruined.

Rāmānujācārya · Vedānta Deśika

Bhakti

This commentator gives a distinctive bhakti reading that narrows what 'this dharma' refers to. He holds that yoga here is of two kinds, devotion (hearing, chanting, and the rest) and desireless action offered to the Lord, and that the verse is primarily extolling devotion. His reason is that only devotion transcends the three gunas, since knowledge is of the nature of sattva and action of the nature of rajas, so neither of those can carry one beyond the gunas. Offered action, on his view, establishes only that action is 'not fruitless'; it is not itself primary devotion. So when the verse says even a little of this dharma saves from the great fear, he takes 'a little' as the small measure of devotion present at the very start, and supports it with the Bhagavata teaching that a single hearing of the Name frees even an outcaste from the round of birth and death, and with the parallel verse where the Lord tells Uddhava that no particle of this dharma, once begun, is ever lost, precisely because it is free of the gunas.

Śrīla Viśvanātha

Bhakti

These commentators read the verse as praising desireless action offered to the Lord, and locate its safety in that God-directed intention. Because the action is undertaken with the Lord alone as its object, the very ground of obstruction or defect cannot arise, unlike desire-driven (kamya) rites that can fall to fruitlessness through a flawed limb. One adds that even a defect in the sacred verses or components brings no harmful consequence here, because it is wiped out by the act being aimed at the Self and by the divine name 'Om Tat Sat'; desireless action, done according to one's ability, surely yields the fruit of steadfastness in knowledge and never a harmful rebound. Another frames the whole as 'even-tempered activism' that contains the Samkhya path within itself, where one keeps acting but holds no attachment to the fruit, and so, like an exorcist who cannot be possessed by the ghosts he handles, is not entangled by the limitations of worldly action.

Śrīdhara Svāmī · Śrīla Baladeva · Sant Jñāneśvar

Śuddhādvaita

These commentators frame the verse as the inviolability of the path walked for Bhagavan. One reads Arjuna's doubt as springing from unfamiliarity with yoga understood as union with Bhagavan, His very pendant of love, so the Lord describes its true nature: deeds done here under His command, for Him and not as means to a fruit, simply do not carry the faults just feared. There is no loss of what was already initiated and no contrary result. He draws a pointed contrast with other systems, where the remembrance of Bhagavan has to be added to make works fruitful and complete; here, where the works are themselves directly for Bhagavan, fruitlessness cannot even arise.

Vallabhācārya · Śrī Puruṣottama

Modern

This commentator draws out a consequence the others leave implicit: that the gain of this path is carried across lifetimes. Even if perfection is not reached in one life, the action performed is not wasted but proves useful in subsequent births, and the merit, accumulating from birth to birth, brings true release ultimately, sometime or other. On this reading, 'no loss of what is begun' is a promise that spans many lives, not just the present one.

Lokmanya Tilak

Modern

This non-sectarian devotional commentator reads 'this dharma' as samabuddhi, equanimity (samata), and unfolds the verse around it. The imperishable 'beginning' that is never destroyed is the very longing (utkantha) for equanimity in the mind, and it cannot be absent, because the longing for the true is itself true. 'Reverse fruit' he defines specifically as vishamata, the unevenness of liking one thing and disliking another, which is the very root of the bondage of birth and death; since desireless practice carries no craving for fruit, it cannot generate this unevenness and so cannot produce a reverse result. He stresses that the word 'iha', here, means that only the human birth is fit for gaining this equanimity, all other births being for enjoyment, which necessarily runs on liking and disliking. Unlike merit from charity, austerity, or pilgrimage, which yields a fruit and is then spent, even a little equanimity that enters the heart is never spent; it remains forever safe because it is real and ever-abiding.

Swami Ramsukhdas

Kashmir Shaivism

This commentator reads the line as continuing the contrast between the understanding stated with respect to Samkhya (right knowledge) and the same understanding now stated with respect to yoga, skill in action, by which one gives up the binding power of actions. His distinctive point is on how binding works at all: actions do not bind of themselves, since they are insentient. Rather the self itself binds itself, through actions that take the form of latent impressions. The implication is that the freedom this path promises is a matter of how the self relates to its own residues, not of the deeds as such.

Ācārya Abhinavagupta

Bhedabheda

This commentator's note on this stretch is brief and focused on the framing rather than the no-loss promise. He clarifies that 'Samkhya' here is not the technical system of Kapila but the discrimination of the true nature of the self, that 'yoga' is the means consisting in the performance of action, and that equanimity is the absence of any longing for results, with action offered to the Lord. He treats the verse as part of Krishna asking Arjuna to hear and concentrate his mind on this understanding.

Śrī Bhāskara