यज्ञ विद्या · The knowledge of Yagya

Yagya is the art of offering

Not merely a fire ritual — a discipline of giving, gratitude and harmony with ऋत, the order of the cosmos.

01धातुMeaning

One root, three meanings

Sanskrit grammar traces यज्ञ to the root यज्. Panini’s Dhatupatha defines it in three words:

यज देवपूजासङ्गतिकरणदानेषु।

Panini, Dhatupatha

देवपूजा

Deva-puja

Worship of the divine — honouring the forces that sustain life.

सङ्गतिकरण

Sangatikaran

Coming together — uniting people, purpose and the cosmos.

दान

Daan

Giving — releasing what we hold, for the good of all.

02उद्देश्यPurpose

Why a yagya is performed

To keep the cosmos in balance

Vedic thought sees a reciprocal bond between humanity and the devas — the forces of nature. Yagya nourishes those forces, so that they in turn nourish life on earth.

To purify the environment

Ghee, medicinal herbs and grains offered into the fire, with the vibration of Vedic mantra, are traditionally held to cleanse the air of harmful microbes.

To loosen the ego

Every offering ends with इदं न मम — this is not mine. The practice cultivates detachment and the memory that everything belongs to the Divine.

For the welfare of all

Some yagyas are offered for rain, health or peace (kamya karma); the greatest are offered for the good of every being.

05आहुतिThe Offering

The five elements

A yagya is a meeting — of fire and earth, matter and mantra, the giver and the given. Select an element.

अग्नि

AgniThe fire

The first word of the Rigveda. Agni is the messenger between worlds — the mouth through which every offering reaches the Divine.

04प्रकारForms

The many forms of Yagya

Pancha Mahayagya — five yagyas of every day

The Shastras ask every householder to offer five yagyas daily. Only one of them needs a fire.

ब्रह्मयज्ञBrahma YagyaStudy and teaching of sacred knowledge.
देवयज्ञDeva YagyaOfferings into the sacred fire — havan and agnihotra.
पितृयज्ञPitri YagyaRemembrance of, and gratitude to, the ancestors.
भूतयज्ञBhuta YagyaFeeding animals, birds and all living beings.
मनुष्ययज्ञManushya YagyaHospitality and service to fellow human beings.

The Gita’s many fires

In Chapter 4, Krishna widens yagya far beyond the fire pit (4.28–4.33):

द्रव्य यज्ञDravya YagyaOffering wealth and material resources.
तपो यज्ञTapo YagyaAusterity and self-discipline.
योग यज्ञYoga YagyaSpiritual practice and yoga.
स्वाध्याय यज्ञSvadhyaya YagyaStudy and recitation of sacred texts.
ज्ञान यज्ञJnana YagyaThe offering of knowledge — praised above all (4.33).

Three kinds of offering

The Gita (17.11–13) judges a yagya by the heart that offers it:

सात्त्विकSattvicOffered as scripture directs, as a duty, without craving a reward.
राजसिकRajasicOffered for show, or with an eye on the fruit.
तामसिकTamasicOffered without faith, without mantra, without sharing food or giving dakshina.

Yagya in the Itihasa

पुत्रकामेष्टि

Valmiki Ramayana · Bala Kanda

King Dasharatha’s yagya, guided by the sage Rishyashringa — the prelude to the birth of Rama and his brothers.

राजसूय

Mahabharata · Sabha Parva

Yudhishthira’s royal consecration, where yagya meets duty, sovereignty and the politics of kings.

05शास्त्रScripture

Shlokas on Yagya

Read in Sanskrit, with transliteration and meaning. Numbering follows the common editions.

The Vedas

अग्निमीळे पुरोहितं यज्ञस्य देवमृत्विजम्।होतारं रत्नधातमम्॥

agnim īḷe purohitaṃ yajñasya devam ṛtvijam | hotāraṃ ratnadhātamam ||

I praise Agni, the household priest, the divine minister of the yagya, the invoker, the bestower of treasures.

Rigveda 1.1.1

इयं वेदिः परो अन्तः पृथिव्याअयं यज्ञो भुवनस्य नाभिः।

iyaṃ vediḥ paro antaḥ pṛthivyā ayaṃ yajño bhuvanasya nābhiḥ |

This altar is the farthest end of the earth; this yagya is the navel of the universe.

Rigveda 1.164.35

यज्ञेन यज्ञमयजन्त देवास्तानि धर्माणि प्रथमान्यासन्।ते ह नाकं महिमानः सचन्त यत्र पूर्वे साध्याः सन्ति देवाः॥

yajñena yajñam ayajanta devās tāni dharmāṇi prathamāny āsan | te ha nākaṃ mahimānaḥ sacanta yatra pūrve sādhyāḥ santi devāḥ ||

With yagya the gods worshipped yagya — these were the first dharmas. The great ones reached the heaven where the ancient Sadhyas and gods dwell.

Rigveda 10.90.16 · Purusha Sukta

द्यौः शान्तिरन्तरिक्षं शान्तिः पृथिवी शान्तिरापः शान्तिरोषधयः शान्तिः।वनस्पतयः शान्तिर्विश्वेदेवाः शान्तिर्ब्रह्म शान्तिः सर्वं शान्तिः शान्तिरेव शान्तिः सा मा शान्तिरेधि॥

dyauḥ śāntir antarikṣaṃ śāntiḥ pṛthivī śāntir āpaḥ śāntir oṣadhayaḥ śāntiḥ | vanaspatayaḥ śāntir viśvedevāḥ śāntir brahma śāntiḥ sarvaṃ śāntiḥ śāntir eva śāntiḥ sā mā śāntir edhi ||

Peace in the sky, peace in the space between, peace on earth, peace in the waters, peace in the healing herbs; peace in the trees, in all the devas, in Brahman, peace in everything — and may that peace come to me.

Shukla Yajurveda 36.17

ॐ भूर्भुवः स्वः। तत्सवितुर्वरेण्यंभर्गो देवस्य धीमहि। धियो यो नः प्रचोदयात्॥

oṃ bhūr bhuvaḥ svaḥ | tat savitur vareṇyaṃ bhargo devasya dhīmahi | dhiyo yo naḥ pracodayāt ||

We meditate on the radiant light of the divine Savitr; may it awaken and guide our minds.

Rigveda 3.62.10 · Gayatri Mantra

The Bhagavad Gita

यज्ञार्थात्कर्मणोऽन्यत्र लोकोऽयं कर्मबन्धनः।तदर्थं कर्म कौन्तेय मुक्तसङ्गः समाचर॥

yajñārthāt karmaṇo ’nyatra loko ’yaṃ karma-bandhanaḥ | tad-arthaṃ karma kaunteya mukta-saṅgaḥ samācara ||

Work done for any purpose other than yagya binds us to this world. So, O son of Kunti, act for the sake of yagya, free of attachment.

Bhagavad Gita 3.9

सहयज्ञाः प्रजाः सृष्ट्वा पुरोवाच प्रजापतिः।अनेन प्रसविष्यध्वमेष वोऽस्त्विष्टकामधुक्॥

saha-yajñāḥ prajāḥ sṛṣṭvā purovāca prajāpatiḥ | anena prasaviṣyadhvam eṣa vo ’stv iṣṭa-kāma-dhuk ||

In the beginning the Creator brought forth beings together with yagya and said: by this shall you flourish; let it be the giver of all you rightly desire.

Bhagavad Gita 3.10

देवान्भावयतानेन ते देवा भावयन्तु वः।परस्परं भावयन्तः श्रेयः परमवाप्स्यथ॥

devān bhāvayatānena te devā bhāvayantu vaḥ | parasparaṃ bhāvayantaḥ śreyaḥ param avāpsyatha ||

Nourish the devas with this, and may the devas nourish you. Nourishing one another, you will attain the highest good.

Bhagavad Gita 3.11

अन्नाद्भवन्ति भूतानि पर्जन्यादन्नसम्भवः।यज्ञाद्भवति पर्जन्यो यज्ञः कर्मसमुद्भवः॥

annād bhavanti bhūtāni parjanyād anna-sambhavaḥ | yajñād bhavati parjanyo yajñaḥ karma-samudbhavaḥ ||

Beings arise from food; food is born of rain; rain comes from yagya; and yagya is born of action.

Bhagavad Gita 3.14

ब्रह्मार्पणं ब्रह्म हविर्ब्रह्माग्नौ ब्रह्मणा हुतम्।ब्रह्मैव तेन गन्तव्यं ब्रह्मकर्मसमाधिना॥

brahmārpaṇaṃ brahma havir brahmāgnau brahmaṇā hutam | brahmaiva tena gantavyaṃ brahma-karma-samādhinā ||

The offering is Brahman, the ghee is Brahman, offered by Brahman into the fire that is Brahman. One who sees Brahman in every act reaches Brahman.

Bhagavad Gita 4.24

श्रेयान्द्रव्यमयाद्यज्ञाज्ज्ञानयज्ञः परन्तप।सर्वं कर्माखिलं पार्थ ज्ञाने परिसमाप्यते॥

śreyān dravya-mayād yajñāj jñāna-yajñaḥ parantapa | sarvaṃ karmākhilaṃ pārtha jñāne parisamāpyate ||

Better than the yagya of material things is the yagya of knowledge, O Parantapa — for all action culminates in knowledge.

Bhagavad Gita 4.33

अफलाकाङ्क्षिभिर्यज्ञो विधिदृष्टो य इज्यते।यष्टव्यमेवेति मनः समाधाय स सात्त्विकः॥

aphalākāṅkṣibhir yajño vidhi-dṛṣṭo ya ijyate | yaṣṭavyam eveti manaḥ samādhāya sa sāttvikaḥ ||

A yagya offered as scripture directs, by those who seek no reward and hold that it simply ought to be done — that yagya is sattvic.

Bhagavad Gita 17.11

Upanishads & Brahmanas

अथो अयं वा आत्मा सर्वेषां भूतानां लोकः।स यज्जुहोति यद्यजते तेन देवानां लोकः॥

atho ayaṃ vā ātmā sarveṣāṃ bhūtānāṃ lokaḥ | sa yaj juhoti yad yajate tena devānāṃ lokaḥ ||

This Self is the world of all beings. When one offers and performs yagya, one becomes the world of the gods.

Brihadaranyaka Upanishad 1.4.16

सत्यं वद। धर्मं चर।स्वाध्यायान्मा प्रमदः॥

satyaṃ vada | dharmaṃ cara | svādhyāyān mā pramadaḥ ||

Speak the truth. Walk in dharma. Never neglect your study.

Taittiriya Upanishad 1.11.1

यज्ञो वै श्रेष्ठतमं कर्म।

yajño vai śreṣṭhatamaṃ karma |

Yagya is the noblest of all actions.

Shatapatha Brahmana 1.7.1.5

06विज्ञानScience

The science of the smoke

What researchers have measured so far — with the sources, so you can read them yourself.

Journal of Ethnopharmacology 114(3):446–451 · 2007
Medicinal smoke reduces airborne bacteria
C. S. Nautiyal, P. S. Chauhan, Y. L. Nene
Burning wood with a mixture of medicinal and aromatic herbs (havan samagri) for one hour reduced airborne bacterial counts by over 94%. The effect held for 24 hours in a closed room, and several plant and human pathogens were absent from the open room 30 days later.
Read the study (opens in a new tab)
Rajasthan Patrika · Ajmer · 2023
Bacteria-borne disease and havan: JLN Medical College gets a patent
Dr. Vijaylata Rastogi, Head of Microbiology, JLN Medical College, Ajmer
Air samples were taken before and after havan in a room set aside for the study, followed by chemical analysis. The researchers report that havan smoke is effective against pathogenic bacteria; the havan samagri received a patent in February 2023.
Read the study (opens in a new tab)
Aaj Tak · 2025
Ajmer Medical College to treat bacteria with havan
Aaj Tak, Ajmer
Reports the patent and a government-sanctioned budget to develop havan smoke therapy in a special room, with plans for wider use.
Read the study (opens in a new tab)
BMJ 323:1446–1449 · 2001
Effect of rosary prayer and yoga mantras on autonomic cardiovascular rhythms
L. Bernardi et al.
Reciting mantras slowed breathing to about six breaths a minute — a rhythm that synchronised and strengthened the body’s cardiovascular reflexes.
Read the study (opens in a new tab)
International Journal of Yoga 4(1):3–6 · 2011
Neurohemodynamic correlates of “OM” chanting: a pilot fMRI study
B. G. Kalyani et al.
Chanting OM was associated with deactivation of limbic brain regions linked with emotion and stress, compared with a control sound.
Read the study (opens in a new tab)

07प्रकृतिNature

Yagya and the air we share

The Gita describes a cycle: action becomes yagya, yagya becomes rain, rain becomes food, food becomes life. It is an ecology written as a prayer.

Gurudev’s message is practical. Pollution has made our air hard to breathe; a home that holds a havan every week or fortnight takes part, in its small way, in setting that right.

Use dry, clean samidha and pure ghee. Never burn plastic, wet wood or chemical incense in the kund — they pollute rather than purify.

द्यौः शान्तिरन्तरिक्षं शान्तिः पृथिवी शान्तिरापः शान्तिरोषधयः शान्तिः।वनस्पतयः शान्तिर्विश्वेदेवाः शान्तिर्ब्रह्म शान्तिः सर्वं शान्तिः शान्तिरेव शान्तिः सा मा शान्तिरेधि॥

Shukla Yajurveda 36.17

08शब्दकोशGlossary

Glossary

The words of the yagya-shala, in plain language.

Agniअग्नि: The sacred fire and the deity of fire; the messenger who carries offerings to the devas.
Agnihotraअग्निहोत्र: The daily fire offering, made precisely at sunrise and sunset.
Agni Manthanअग्नि मन्थन: Kindling the yagya fire by churning wood (arani) — the ancient way to begin a Mahayagya.
Ahutiआहुति: A single offering into the fire, made with a mantra.
Ajyaआज्य: Ghee, the principal offering of a yagya; cow ghee is preferred.
Dakshinaदक्षिणा: The offering of gratitude to the priests at the close of a yagya.
Havanहवन: A fire ceremony; in everyday speech, a yagya performed at home.
Haviहवि: Any substance offered into the fire.
Hotaहोता: The priest who invokes the devas with Rigvedic hymns.
Idam na mamaइदं न मम: “This is not mine” — spoken after each offering.
Kalash Yatraकलश यात्रा: A procession carrying sacred water pots, opening a Mahayagya.
Kundकुण्ड: The fire altar or pit; square kunds are the most common for havan.
Mahayagyaमहायज्ञ: A great yagya of many kunds and many days, offered for collective welfare.
Mantraमन्त्र: Sacred sound from the Vedas; the vehicle of every offering.
Mekhalaमेखला: The stepped terraces of a kund, usually three.
Purnahutiपूर्णाहुति: The final offering that completes a yagya.
Rtaऋत: The cosmic order that yagya is meant to sustain.
Samagriसामग्री: The herbal mixture offered into the fire.
Samidhaसमिधा: Sticks of sacred wood that feed the fire.
Sankalpसङ्कल्प: The solemn resolve spoken before a yagya begins.
Shulba Sutraशुल्ब सूत्र: Ancient geometry texts that give the rules for building fire altars.
Svahaस्वाहा: “Well offered” — the word that seals each ahuti.
Vediवेदी: The consecrated altar ground of a yagya.
Yajmanयजमान: The host of the yagya, on whose behalf it is offered.
Yagya Bhasmaयज्ञ भस्म: The sacred ash the fire leaves behind.

09प्रश्नFAQ

Questions, answered

What is a yagya?

A yagya (also yajna, havan or homa) is a Vedic act of offering. Ghee, herbs and grains are offered into a consecrated fire with mantras, in the spirit of इदं न मम — this is not mine.

Is a yagya the same as a havan?

Yagya is the wider idea: any sacred offering, outer or inner. Havan usually means the fire ceremony itself, especially a smaller one at home.

Can I perform a yagya at home?

Yes. A small copper or clay kund, dry samidha, cow ghee and havan samagri are enough. Gurudev encourages a havan at home every week or fortnight. The Yagya Diwas page has a step-by-step guide.

When is International Yagya Diwas?

Every year on 17 September. It was first observed in 2023 at the call of Yagya Putra, Shri Shri 1008 Hari Om Ji Maharaj; the fourth edition in 2026 was marked with a 1008-kund Mahayagya at Jind.

Who is Yagya Putra?

Yagya Putra is the name devotees give to Chakravarti Yagya Samrat Shri Shri 1008 Hari Om Ji Maharaj, head of the Tripura Peeth at Maa Tripura Sundari Dham, Manikoot Parvat, Rishikesh. He has led more than a hundred Mahayagyas across India under a sankalp of 108.

What does science say about havan smoke?

A 2007 study in the Journal of Ethnopharmacology found that burning havan samagri reduced airborne bacteria by more than 94% within an hour. Research at JLN Medical College, Ajmer, led to a patent for a havan samagri formulation.

What is the best time for a havan?

Sunrise and sunset are traditional — the times of Agnihotra — but any calm, clean hour with a settled mind is suitable.

How can I take part in a Mahayagya?

Follow Yagya Putra on YouTube, Instagram, Facebook and X for announcements. At a Mahayagya, devotees can join as yajman, walk in the kalash yatra, or simply offer ahuti.