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Bhagavad-gītā 4.37

यथैधांसि समिद्धोऽग्न‍िर्भस्मसात्कुरुतेऽर्जुन । ज्ञानाग्न‍िः सर्वकर्माणि भस्मसात्कुरुते तथा ॥ ३७ ॥
yathaidhāṁsi samiddho ’gnir
[yathaidhaamsi samiddho ’gnir]
bhasma-sāt kurute ’rjuna
[bhasma-saat kurute ’rjuna]
jñānāgniḥ sarva-karmāṇi
[jnaanaagnih sarva-karmaani]
bhasma-sāt kurute tathā
[bhasma-saat kurute tathaa]
Word-for-word
yathā — just as edhāṁsi — firewood samiddhaḥ — blazing agniḥ — fire bhasma - sāt — ashes kurute — turns arjuna — O Arjuna jñāna - agniḥ — the fire of knowledge sarva - karmāṇi — all reactions to material activities bhasma - sāt — to ashes kurute — it turns tathā — similarly .
Blended reading (Sanskrit + English inline)
yathaidhāṁsi samiddho ’gnir
yathā
just as
edhāṁsi
firewood
samiddhaḥ
blazing
bhasma-sāt kurute ’rjuna
jñānāgniḥ sarva-karmāṇi
agniḥ
fire
bhasma-sāt kurute tathā
bhasma - sāt
ashes
kurute
turns
arjuna
O Arjuna
jñāna - agniḥ
the fire of knowledge
sarva - karmāṇi
all reactions to material activities
bhasma - sāt
to ashes
kurute
it turns
tathā
similarly .
Important Words
  • edhāṁsi — firewood / fuel
    Neuter plural of edhas — fuel pieces. The image is concrete: pieces of seasoned wood, not vague 'sin' or 'karma' in the abstract. The verse insists on the materiality of the analogy.
  • samiddhaḥ — well-kindled
    Past passive participle of sam + √idh — 'thoroughly inflamed.' A *fully lit* fire, not a smoldering one. The quality of the fire matters: weak jñāna does not burn karma; samiddha-jñāna does.
  • bhasma - sāt — into ashes
    Compound: bhasma (ash) + the suffix -sāt ('into the state of'). Paired with kurute ('makes'), the phrase means 'reduces (it) into ashes.' Sanskrit's exact way of expressing total transformation, not partial reduction.
  • jñāna - agniḥ — the fire of knowledge
    Same compound as in 4.19 (jñāna-agni-dagdha). Knowledge is again grammatically the fire. The image is consistent across the chapter; the verse here just makes the simile explicit.
  • sarva - karmāṇi — all (reactions to) activities
    Sarva (all) + karmāṇi (works, plural). The fire's scope: *all* karmic residue, not merely recent sins. The dry wood of lifetimes burns in the same blaze.
As a blazing fire turns firewood to ashes, O Arjuna, so does the fire of knowledge burn to ashes all reactions to material activities.
Classical Sanskrit analysis शास्त्रीय विश्लेषण
How Sanskrit scholars read this verse — split, rearranged, grammar-tagged. For the plain English distilled meaning, jump to Plain meaning below.
Auto-generated study layers — original analysis of the public-domain śloka. Review against a published edition for academic work.
Plain meaning (तात्पर्य · Tātparya)
A vivid analogy: as one good fire is enough to incinerate a heap of fuel, so a single, well-kindled fire of knowledge is sufficient to incinerate the lifetime's stock of karma. Quality, not quantity, matters.
Further notes (विवरण · Vivaraṇa)
Returns to the ज्ञानाग्नि image of 4.19 with full force. The suffix सात् in भस्म-सात् marks complete transformation (cvi-formation). सर्व-कर्माणि = all karma-stock — prārabdha shadow excepted in the usual reading but conceptually total. The simile remains a favorite in later Vedānta literature.
Prose order (अन्वय · Anvaya)
हे अर्जुन! यथा समिद्धः अग्निः एधांसि भस्म-सात् कुरुते, तथा ज्ञान-अग्निः सर्व-कर्माणि भस्म-सात् कुरुते।
he arjuna! yathā samiddhaḥ agniḥ edhāṃsi bhasma-sāt kurute, tathā jñāna-agniḥ sarva-karmāṇi bhasma-sāt kurute|
O Arjuna, as a kindled fire reduces firewood to ash, so does the fire of knowledge reduce all actions to ash.
Word split (पदच्छेद · Padaccheda)
यथा एधांसि समिद्धः अग्निः भस्म-सात् कुरुते अर्जुन । ज्ञान-अग्निः सर्व-कर्माणि भस्म-सात् कुरुते तथा ॥
yathā edhāṃsi samiddhaḥ agniḥ bhasma-sāt kurute arjuna | jñāna-agniḥ sarva-karmāṇi bhasma-sāt kurute tathā ||
Grammar (व्याकरण · Vyākaraṇa)
SanskritIASTGrammarMeaning
यथा yathā ind. (indeclinable), correlative just as
एधांसि edhāṃsi एधस् (n.) acc.pl. (accusative plural) fuel-sticks
समिद्धः samiddhaḥ सम्+√इन्ध् p.p.p. (past passive participle) nom.sg. (nominative singular)m. well-kindled
अग्निः agniḥ अग्नि (m.) nom.sg. (nominative singular) fire
भस्म-सात् bhasma-sāt भस्मन् (n.) + सात् (cvi-suffix) adverbial into ash
कुरुते kurute √कृ pres. (present) 3sg.ātm. (ātmanepada / middle voice) makes
अर्जुन arjuna अर्जुन (m.) voc.sg. (vocative singular) O Arjuna
ज्ञान-अग्निः jñāna-agniḥ ज्ञान + अग्नि (m.) nom.sg. (nominative singular), karmadhāraya cpd. (compound) the fire of knowledge
सर्व-कर्माणि sarva-karmāṇi सर्व + कर्मन् (n.) acc.pl. (accusative plural), karmadhāraya cpd. (compound) all actions
तथा tathā ind. (indeclinable), correlative so
Purport

Perfect knowledge of self and Superself and of their relationship is compared herein to fire. This fire not only burns up all reactions to impious activities, but also all reactions to pious activities, turning them to ashes. There are many stages of reaction: reaction in the making, reaction fructifying, reaction already achieved, and reaction a priori. But knowledge of the constitutional position of the living entity burns everything to ashes. When one is in complete knowledge, all reactions, both a priori and a posteriori, are consumed. In the Vedas ( Bṛhad-āraṇyaka Upaniṣad 4.4.22) it is stated, ubhe uhaivaiṣa ete taraty amṛtaḥ sādhv-asādhūnī: “One overcomes both the pious and impious reactions of work.”

— A.C. Bhaktivedanta Swami Prabhupāda
Gauḍīya Ācāryas
Viśvanātha Cakravartī Ṭhākura Gauḍīya
Translation
37. As a blazing fire burns to ashes all fuel wood, the fire of knowledge turns to ashes all actions.
Commentary

Knowledge arising from purity of heart destroys all karmas except the prārabdha-karmas. [Note: Prārabdha-karmas are those which are being experienced in this life. Aprārabdha-karmas are those which are waiting for future life times, not this life. Jñāna destroys the aprārabdha-karmas but not the prārabdha-karmas. Bhakti destroys all karmas.] This verse illustrates with an example. Samiddhaḥ means “blazing.”

Baladeva Vidyābhūṣaṇa Gauḍīya
Translation
37. As a blazing fire burns to ashes all fuel wood, the fire of knowledge turns all actions to ashes.
Commentary

It has just been said that sinful reactions are destroyed by brahma vidyā (knowledge of the Lord and ātmā). Now this verse says that even puṇya karmas are destroyed by brahma vidyā. Just as blazing (samiddhaḥ) fire turns fuel wood (edhāṁsi) to ashes, the fire of knowledge, the fire of realization of ones own ātmā and paramātmā, turns to ashes all reactions, including those arising from pious acts, but not the prārabdha reactions. That knowledge burns up all accumulated past karmas which are like reeds but not the prārabdha ones. And that knowledge also transforms the actions performed in the present life, and makes them like drops of water rolling off a lotus leaf, having no reactions. Though the prārabdha karmas are extremely weakened by the influence of this knowledge, they are still situated in the person with realization of ātmā, by the will of the Lord, in order to preach the proper path of conduct. [Note: If the prārabdha karmas were completely destroyed, the body of the devotee, the result of prārabdha karma, would also disappear, and thus there would be no one to preach the Lord’s message.] The śruti says: ubhe uhaivaiṣa ete taraty amṛtaḥ sādhvasādhunī The realizer of Braman overcomes all reactions to sinful and piety actions (sādhvasādhunī), of both accumulated and present types (ubhe). Bṛhad Āraṇyaka Upaniṣad 4.4.22 The meaning of the verse is this. The realizer of Brahman (eṣa) overcomes the past reactions (except prārabdha) and presently accruing reactions by actions in this life (ubhe) in the form of pious and sinful reactions (sādhvasādhunī). The author of the Sūtras says: tad-adhigama uttara-pūrvārdhayor aśleṣa-vināśau tad-vyapadeśāt On attaining this, there is destruction previous sins and non-clinging of future sins. Because it is declared. Vedānta Sūtra 4.1.13

Bhūrijana Dāsa Gauḍīya
Commentary

When one thinks that transcendental knowledge is going to destroy all the reactions to activities normally he thinks about sinful reactions and he is eager to welcome the pious reactions, let me enjoy them. But actually transcendental knowledge burns to ashes both, pious and sinful activities.

Study Notes — Gauranga Priya Dāsa
Gauranga Priya Dāsa Study Key verse
Bhakti-śāstrī Notes, ISKCON Chowpatty (2009)
Theme

By that knowledge of self and Supersoul and their relationship, one burns all sinful reactions

Focus of Learning

(a) Analogy: Knowledge compared to fire – burns all reactions to material activities

(b) Two types of reactions: pious and impious; priori and posteriori (Ref. Brhad-aranyaka Upanisad) –

both burnt

(c) 4 stages of reaction – All are burnt by transcendental knowledge

1. Reaction in the making

2. Reaction fructifying

3. Reaction already achieved

4. Reaction a priori

(a) Analogies:

Knowledge compared to boat – Material world is compared to an ocean, even an expert swimmer cannot swim across the ocean but has to be lifted out of the ocean by a suitable boat
Material world is also compared to blazing forest fire

(d) Example of “Maya” – Arjuna’s thoughts of temporary bodily conception

To think oneself separate from Krishna under illusion
To come under the bodily conception and recognize with the bodily relationships

(e) What does liberation / freedom from illusion mean – to know constitution as eternal servitor

Only way to get get such pure knowledge – Only from bona-fide spiritual master
Meaning of ‘Mukti’ – Ref. SB 2.10.6

(f) What is the entire teaching of the Bhagavad-gita targeted towards –

Living entity is an eternal servitor
Cannot be separated from Krishna at any time
Any sense of identify apart from Krishna is maya

(g) What is the level of perfect knowledge – Supreme soul Krishna, is the supreme shelter of all living

beings

Classical Ācāryas
Śrī Śaṅkarācārya Classical
Translation
4.37 O Arjuna, yatha, as; a samiddhah, blazing; agnih, fire, a well lighted fire; kurute, reduces; edhamsi, pieces of wood; bhasmasat, to ashes; tatha, similarly; jnanagnih, the fire of Knowledge-Knowledge itself being the fire; kurute, reduces; bhasmasat, to ashes; sarva-karmani, all actions, i.e. it renders them ineffective, for the fire of Knowledge itself cannot directly [Knowledge destroys ignorance, and thery the idea of agentship is eradicated. This in turn makes actions impossible.] burn actions to ashes, like pieces of wood. So, the idea implied is that full enlightenment is the cuase of making all actions impotent. From the force the context [If the body were to die just with the dawn of Knowledge, imparting of Knowledge by enlightened persons would be impossible, and thus there would be no teacher to transmit Knowledge!] it follows that, since the result of actions owing to which the present body has been born has already become effective, therefore it gets eshausted only through experiencing it. Hence, Knowledge reduces to ashes only all those actions that were done (in this life) prior to the rise of Knowledge and that have not become effective, as also those performed along with (i.e. after the dawn of) Knowledge, and those that were done in the many past lives. Since this is so, therefore,
Śrī Rāmānujācārya Classical
Translation
4.37 The fire of knowledge concerning the real nature of the self reduces to ashes the collection of endless Karmas accumulated from beginningless times, just as a well-kindled fire reduces to ashes a bundle of firewood.
Śrī Abhinavagupta Classical
Translation
4.36-37 Api cet etc. Yatha etc. The idea is this : One should exert is such a way so that the fire of knowledge remains well fuelled with the knot of firmness of conviction born of practice.
Swami Sivananda Classical
Translation
4.37 As the blazing fire reduces fuel to ashes, O Arjuna, so does the fire of knowledge reduce all actions to ashes.
Commentary

4.37 यथा as? एधांसि fuel? समिद्धः blazing? अग्निः fire? भस्मसात्कुरुते reduces to ashes? अर्जुन O Arjuna? ज्ञानाग्निः fire of knowledge? सर्वकर्माणि all actions? भस्मसात्कुरुते reduces to ashes? तथा so.Commentary Just as the sees that are roasted cannot germinate? so also the actions that are burnt by the fire of knowledge cannot bear fruits? i.e.? cannot bring man to this world again for the enjoyment of the fruits of his actions. This is reducing actions to ashes. The actions lose their potency as they are burnt by the fire of knowledge. When the knowledge of the Self dawns? all actions with their results are burnt by the fire of that knowledge just as fuel is burnt by the fire. When there is no agencymentality (the idea I do this)? when there is no desire for the fruits? action is no action at all. It has lost its potency. The fire of knowledge can burn all actions except the Prarabdha Karma? or the result of the past action which has brought this body into existence and which has thus already begun to bear fruits or produce effects.According to some philosophers even the Prarabdha Karma is destroyed by the fire of knowledge. Sri Sankara says in his AparokshanubhutiIn the passage his actions are destroyed when the Supreme is realised the Veda expressly speaks of actions (Karmas) in the plural? in order to signify the destruction of even the Prarabdha.There are three kinds of Karmas or reaction to or fructification of past actions (1) Prarabdha? so much of the past actions as has given rise to the present birth? (2) Sanchita? the balance of the past actions that will give rise to future births -- the storehouse of accumulated actions? and (3) Agami or Kriyamana? acts being done in the present life. If by the knowledge of the Self only the Sanchita and Agami were destroyed and not Prarabdha? the dual number would have been used and not the plural. (Sanskrit grammar has singular? dual and plural numbers). (Cf.IV.1019)

Swami Gambhīrānanda Classical
Translation
4.37 O Arjuna, as a blazing fire reduces pieces of wood to ashes, similarly the fire of Knowledge reduces all actions to ashes.
Shri Purohit Swami Classical
Translation
4.37 As the kindled fire consumes the fuel, so, O Arjuna, in the flame of wisdom the embers of action are burnt to ashes.
Related values & verses
Related values
Tyaga (Renunciation / Letting Go)Karuna (Kindness / Compassion)Ahimsa (Non-violence / Compassion)Tapas (Austerity / Discipline)Guru Bhakti (Reverence for Teacher)Atma Nigraha (Self-control)Daksya (Resourcefulness / Skill)Maitri (Friendship / Goodwill)Abhaya (Fearlessness)
Related verses
BG 4.19 BG 4.36 BG 9.2 SB 11.20.30 SB 6.2.17 SB 11.14.19 CC Madhya 19.176 CC Madhya 22.141 CC Antya 3.86 Muṇḍaka Upaniṣad 2.2.9Chāndogya Upaniṣad 5.24.3
Study Q&A referencing this verse
Related lectures
Personal Guidance
As blazing fire turns wood to ashes, so the fire of knowledge burns to ashes all reactions to material activities.
Practical Applications
  • Trust that real knowledge has the power to burn karmic residue.
  • Don't anxiously try to 'work off' karma manually; let knowledge burn it.
  • Cultivate the fire steadily — small flame burns slowly, big flame fast.
Reflection Questions
  • What karmic residue am I trying to manually undo?
  • Where would the fire of knowledge be more effective?
Analogy

A pile of dry wood — accumulated for years, looking unmovable — is reduced to soft ash in an afternoon by a fully-lit fire. Knowledge has the same chemistry against karmic accumulation. The verse promises not slow attrition but combustion: same wood, gone.

📝 My note

Source: vedabase.io

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