The deed that never once looked ahead is the darkest kind, whatever it costs.
A deed sets out without weighing what it will bring, what it will cost, whom it will hurt, or whether the doer can see it through. Krishna names this unweighed, undiscerning beginning, not any failed result, as the mark of action in the mode of darkness.
Action begun in delusion, giving no thought to what will follow, what it costs, whom it harms, or whether you truly have the strength to finish it, is called action in the mode of darkness.
The reading read whole, as one unhurried piece
Where it stands
Krishna has just named the sattvic act, duty done without craving or aversion, and the rajasic act, done from hunger for results and strain. Now he reaches the third and lowest of the three, action born of tamas, and closes this triad before turning, in the very next verses, to sort the doer behind the deed.
The teaching
An action is dark when it begins in delusion, in a mind that has stopped discriminating before it ever moves. The darkness is not in the outcome. It is in the confused, unseeing state the doer starts from. Before acting, there are four things to weigh, and the deluded doer weighs none of them: what will follow once the deed is done, the loss or cost of doing it, the injury it lays on other living beings, and an honest measure of one's own strength to carry it through to the end. He sets out without looking ahead, without counting the cost, without minding whom he harms, without testing his own capacity. Because the fault lies in the unseeing mind and not in the visible result, releasing the hope for a result is no license for carelessness. Action begun without seeing the consequence is dark, not bright, however good it feels in the moment. This is why the act is placed last among the three: rajasic action at least brings some discrimination into play, stained though it is by craving and pride, while tamasic action brings none at all. For two of the six voices consulted here, Madhva and Abhinavagupta, no independent comment on this particular verse survives; the honest reading says so directly rather than inventing certainty where the record is silent or folded into an earlier verse.
The doubt that rises
If an action is dark only because of the deluded, unweighing mind behind it, and not because of its results, how do you judge your own actions honestly, when you cannot easily see your own delusion from the inside?
Where the paths divide
Read close to the plain words, with a concrete illustration.
Picture Duryodhana waging the war. It is action undertaken from sheer non-discrimination, heedless of the ruin it would bring, of the destruction of bodily power, wealth, and army it would cost, and of the harm it would inflict on countless lives. The whole act is simply this, begun from error, from a want of discernment, with nothing more added beyond the verse's own terms.
For the one who has forgotten whose action it really is.
Look harder at the delusion driving this action. It is, at root, not knowing the supreme Person's own agency, the failure to see that the Lord acts through the self and grants it the very capacity to act at all. The four things left unweighed, consequence, loss, injury, capacity, are read as symptoms of this deeper, prior blindness, not the whole of the fault.
An honest gap in the record, not a suppressed reading.
The source available here states plainly that Madhva offers no comment on this verse. Nothing in his own voice can be drawn from it. On a conditional extension of his wider teaching, one might read tamasic action as the self's delegated competence being exercised without any awareness of how borrowed and dependent that competence actually is, but this is offered only as a flagged extrapolation, never as his recorded word.
Another honest gap, flagged rather than filled with invention.
The source notes that Abhinavagupta treats verses 18.23 through 18.25 as a single passage, with his full comment given at 18.23 and nothing independent recorded at this verse. Extended conditionally from his broader treatment of the gunas as contractions of consciousness's own freedom, tamasic action would be the deepest such contraction, one so heavy that not even elementary discrimination can arise in it. But this is a labeled extension, not his own words on 18.25.
A terse gloss whose one point is exact.
Sridhara's extant comment here is brief, but its single point lands precisely: it is not the outcome that decides whether an action is tamasic, but the unweighed beginning. He names the same four terms as the others and states, compactly, that action begun without considering them, out of confusion alone, is dark.
Read as a corrective against a tempting misreading.
Since the fruit of an action is not yours to claim, does that also excuse you from weighing its cost and consequence beforehand? The verse's own answer is no. Classification never depends on the outcome, only on whether the doer's mind was awake, at the threshold, to consequence, cost, harm, and capacity before the act began.
All six voices agree the darkness lies in the deluded, unweighing mind, not in the outcome. Where they differ is on what the delusion ultimately is, and for two of the six, Madhva and Abhinavagupta, the record itself is thin or silent on this exact verse. Is the fault plain non-discrimination, as Advaita reads it, or a deeper forgetting of who truly grants one's capacity to act, as Ramanuja reads it? And where the extant commentary runs out, how much may a reader responsibly extend a master's wider teaching before it stops being his own? This page keeps both questions open rather than settling them.
A question to carry
Before your next undertaking, can you pause and honestly ask what will follow, what it will cost, whom it might harm, and whether you truly have the strength to finish it?
Where this teaching travels
Verses that sit near this one, each going its own way; follow whichever calls you.
A deed set going by a mind that never woke up to look: that is the dark one. When the looking wakes, before the deed rather than after, the dark is already thinning.
Each school is voiced from the commentators named above. Their full words, every translation, and where the schools agree and differ wait in the reading desk just below. Open the commentary desk.
Having praised the sattvic act and ranked the rajasic one below it, Krishna now names the lowest of the three and turns next to sort the doer who performs each.
Where they agreethe convergence
Across schools and centuries the commentators come to the same ground. These are the points they share, and the voices that hold each one.
The darkness here is not in the result but in the clouded mind that sets out blindly, in confusion, without clear seeing.
Across Advaita, Viśiṣṭādvaita, BhaktiŚaṅkara · Rāmānuja · Madhusūdana · ŚrīdharaIn Śaṅkara, Rāmānuja, and 2 others’ words
This verse names tamasic action, the lowest of the three kinds Krishna is sorting by guna. Its defining mark is that it begins in moha, delusion, a failure of viveka, clear discrimination. The dark quality lies in the clouded mind that starts the act, not in how the act turns out.
Four things the deluded doer never weighs: what the deed will bring, what it will cost, whom it will harm, and whether he has the strength to finish it.
Across Advaita, Viśiṣṭādvaita, BhaktiŚaṅkara · Rāmānuja · Madhusūdana · ŚrīdharaIn Śaṅkara, Rāmānuja, and 2 others’ words
Four things go unweighed by the deluded doer: the consequence that follows the deed, the loss or cost of doing it, the injury it causes to others, and an honest measure of one's own capacity to see it through. The commentators name these four in near-identical terms.
Letting go of the fruit is no license for thoughtlessness; an act begun without weighing consequence, cost, harm, and capacity is dark however good it feels in the moment.
Across Advaita, BhaktiŚaṅkara · Śrīdhara · MadhusūdanaIn Śaṅkara, Śrīdhara, and 1 others’ words
Because the fault is in the unseeing mind and not in the outcome, giving up hope for a result is never license for carelessness. An act begun without looking ahead is dark, however good it may feel to the one doing it in the moment.
This act sits last and lowest because discrimination never comes into play at all, where the rajasic act at least uses it, stained though it is by craving.
Across Advaita, ViśiṣṭādvaitaŚaṅkara · RāmānujaIn Śaṅkara and Rāmānuja’s words
This tamasic action sits last in the sequence, after sattvic and rajasic action, so that the clear-eyed act already praised stands out by contrast. Rajasic action at least brings some discrimination into play, however stained by craving; tamasic action brings none at all.
Where the record for an acarya is thin or silent on this particular verse, as it is for Madhva and Abhinavagupta here, the honest course is to say so plainly rather than to invent.
Across Advaita, ViśiṣṭādvaitaŚaṅkara · RāmānujaIn Śaṅkara and Rāmānuja’s words
Having sorted action into three kinds, the text turns next, in the very next verses, to sort the doer, the agent behind the action, along the same three strands. This verse closes one triad and opens the door to the next.
This is the shared ground; it can be carried as it is. Below is where they differ.
Where they differthe divergence
Viśiṣṭādvaita, in their fuller words
Ramanuja glosses the same four terms exactly, then locates their root in something deeper: not knowing the supreme Person's own agency, forgetting that the Lord acts through the self and grants its very capacity to act. The four practical failures of attention are symptoms of this prior, theological blindness, not the whole of the fault.
Dvaita, in their fuller words
The source on file states plainly that Madhva offers no comment on this verse; nothing in his own voice survives here to draw from. On a conditional extension of his general Dvaita position, one might read tamasic action as the delegated competence to act being exercised heedlessly, without any awareness of its dependent, borrowed nature, but this is offered only as a labeled extrapolation, not as his recorded reading.
Bhakti, in their fuller words
Sridhara's extant gloss is brief but sharp: the verdict of darkness turns on the unweighed start, not on the eventual result. He names the same four terms as the others and states, compactly, that action begun without considering any of them, out of confusion alone, is tamasic. Little more can be drawn from the source beyond this single precise point.
A modern reading, in their fuller words
Read forward into a practical register, the verse becomes a corrective against a real temptation: since renouncing the fruit removes one motive for care, does it also remove the need for foresight? The verse's own answer, read this way, is a flat no. Classification never depends on the outcome, only on whether the doer's frame of mind was awake to consequence, cost, harm, and capacity before acting.
A few questions to carry
These ask for understanding, not recall; each answer is settled by the commentary itself.
For a second sitting
Carry this with youwhat stays
Before your next undertaking, pause and let four quiet questions surface: what will follow from this, what will it cost, whom might it harm, and do I honestly have the strength to see it through. If all four arrive easily, you have already brought discrimination into play. If none of them arrive, and the urge to act feels most urgent exactly where the questions go silent, that silence itself is the warning worth heeding.
Before you begin anything, let four quiet questions wake first: what will follow, what will it cost, whom might it harm, and have you the strength to see it through. Where all four go unasked, that silence is the darkness; let clear seeing come before you move.
Read deeper
Everything a full study holds, folded below.
Word by word
All the commentary, woven together
The commentary, woven together
machine-assisted draft, pending review
Convergence
his verse names tamasic action, the lowest of the three kinds Krishna is sorting by guna. Its defining mark is that it begins in moha, delusion, a failure of viveka, clear discrimination. The dark quality lies in the clouded mind that starts the act, not in how the act turns out.
Śaṅkarācārya · Rāmānujācārya · Madhusūdana Sarasvatī · Śrīdhara Svāmī
Four things go unweighed by the deluded doer: the consequence that follows the deed, the loss or cost of doing it, the injury it causes to others, and an honest measure of one's own capacity to see it through. The commentators name these four in near-identical terms.
Śaṅkarācārya · Rāmānujācārya · Madhusūdana Sarasvatī · Śrīdhara Svāmī
Because the fault is in the unseeing mind and not in the outcome, giving up hope for a result is never license for carelessness. An act begun without looking ahead is dark, however good it may feel to the one doing it in the moment.
Śaṅkarācārya · Śrīdhara Svāmī · Madhusūdana Sarasvatī
This tamasic action sits last in the sequence, after sattvic and rajasic action, so that the clear-eyed act already praised stands out by contrast. Rajasic action at least brings some discrimination into play, however stained by craving; tamasic action brings none at all.
Śaṅkarācārya · Rāmānujācārya
Having sorted action into three kinds, the text turns next, in the very next verses, to sort the doer, the agent behind the action, along the same three strands. This verse closes one triad and opens the door to the next.
Śaṅkarācārya · Rāmānujācārya
Divergence
Advaita Vedānta
Shankara and Madhusudana keep the gloss close to the plain words, adding little beyond stating the four terms with precision: consequence, loss, injury, capacity. Madhusudana supplies the concrete illustration shared in this line of reading, Duryodhana's waging of the war, action undertaken from sheer non-discrimination, heedless of the ruin it would bring to power, wealth, army, and to the many lives at stake. The fault throughout is named simply as want of discernment, viveka's absence.
Śaṅkarācārya · Madhusūdana Sarasvatī
Viśiṣṭādvaita
Ramanuja glosses the same four terms exactly, then locates their root in something deeper: not knowing the supreme Person's own agency, forgetting that the Lord acts through the self and grants its very capacity to act. The four practical failures of attention are symptoms of this prior, theological blindness, not the whole of the fault.
Rāmānujācārya
Dvaita
The source on file states plainly that Madhva offers no comment on this verse; nothing in his own voice survives here to draw from. On a conditional extension of his general Dvaita position, one might read tamasic action as the delegated competence to act being exercised heedlessly, without any awareness of its dependent, borrowed nature, but this is offered only as a labeled extrapolation, not as his recorded reading.
Madhvācārya
Kashmir Śaiva
The source notes that Abhinavagupta treats 18.23 through 18.25 as one passage, with his full comment given at 18.23 and nothing independent recorded at this verse. On a conditional Kashmir Shaiva extension of his general treatment of the gunas as contractions of consciousness's freedom, tamasic action would mark the deepest such contraction, one so heavy that even elementary discrimination cannot arise. This is flagged clearly as extrapolation, not as his own words on 18.25.
Ācārya Abhinavagupta
Bhakti
Sridhara's extant gloss is brief but sharp: the verdict of darkness turns on the unweighed start, not on the eventual result. He names the same four terms as the others and states, compactly, that action begun without considering any of them, out of confusion alone, is tamasic. Little more can be drawn from the source beyond this single precise point.
Śrīdhara Svāmī
Modern
Read forward into a practical register, the verse becomes a corrective against a real temptation: since renouncing the fruit removes one motive for care, does it also remove the need for foresight? The verse's own answer, read this way, is a flat no. Classification never depends on the outcome, only on whether the doer's frame of mind was awake to consequence, cost, harm, and capacity before acting.
Madhusūdana Sarasvatī
A Seeker Asks
If an action is dark only because of the deluded mind that starts it and not because of its result, how can I judge my own actions when I cannot see my own delusion from the inside?
You are not asked to inspect an invisible inner state directly. The verse hands you a visible checklist instead: did you weigh the consequence, the cost, the harm to others, and your own capacity before you began? Delusion is not directly seen, but its four fingerprints, the four absences, are.
Śaṅkarācārya · Rāmānujācārya · Śrīdhara Svāmī
Notice, too, that the test applies at the threshold, not after the outcome is known. You do not need to wait for success or failure to judge yourself honestly; you only need to ask whether these four considerations were awake in you at the moment you set out.
Śrīdhara Svāmī · Madhusūdana Sarasvatī
The deeper safeguard is simply to keep discrimination active as a habit, since tamasic action is precisely the action in which it never engages at all. Where rajasic action at least uses some discernment, however stained by craving, the remedy for tamas is to bring discernment into play deliberately, every time, before the deed.
Śaṅkarācārya · Madhusūdana Sarasvatī
Contemplation
Before your next undertaking, pause and let four quiet questions surface: what will follow from this, what will it cost, whom might it harm, and do I honestly have the strength to see it through. If all four arrive easily, you have already brought discrimination into play. If none of them arrive, and the urge to act feels most urgent exactly where the questions go silent, that silence itself is the warning worth heeding.
Sit with this · sonnet-5-authored
All the translations and commentary
Pull up a chair.
You have come to sit with this verse. When you are ready to hear the translators and the commentators in full, open a tradition in the doorways below, or add a voice by name above.
Also hear this verse, tradition by tradition.