Some texts of hinduism believe that such fire rituals are good sources of attracting clouds and bringing rains.

annād bhavanti bhūtāni parjanyād anna-sambhavaḥ yajñād bhavati parjanyo yajñaḥ karma-samudbhavaḥ Geeta 3.14

All living bodies subsist on food grains, which are produced from rains. Rains are produced by performance of yajna [sacrifice], and yajna is born of prescribed duties.

I want to know how do these fire rituals help to purify the atmosphere and bring rains ?

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    That Gita verse isn't talking about purifying the atmosphere. It's talking about how doing Yagnas is rewarded with rain through Karma. Feb 25, 2017 at 5:10
  • @KeshavSrinivasan so how do you explain that ? Feb 25, 2017 at 8:05
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    It's the law of Karma, good deeds are rewarded with positive things and bad deeds are punished with negative things. Feb 25, 2017 at 8:29
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    Yes, Vedic yajnas, Vedic mantras, worship of deities, etc purify the entire area and all the elements where they are done.
    – Ikshvaku
    Dec 21, 2018 at 0:26

2 Answers 2


Yagna produces rain(by satisfying gods) which is a necessity for life on earth, so yagna helps ecosystem/environment to sustain itself.

You should look at context, Sri Krishna is showing importance of doing vedic karma/karma-yoga to arjuna(and the whole world).

In BG 3.12(context for BG 3.14)Bhagwan Sri Krishna is talking about benefits/good-consequences of doing Yagna/Worshipping gods by sacrifices(aka Ishta). Bhagwan also points out that the one who does not perform Sacrifices is thief.

इष्टान्भोगान्हिवोदेवा दास्यन्ते यज्ञ भाविता: ॥

तैर्दत्तान प्रदायेभ्यो यो भुङ्तेस्तेन एव च ॥३.१२॥

In charge of the various necessities of life, the demigods(I prefer gods), being satisfied by the performance of yajna [sacrifice], will supply all necessities to you. But he who enjoys such gifts without offering them to the demigods in return is certainly a thief. BG 3.12

Since Rain is a necessity for life on earth, Gods shower rains as a result of Yagna-karma done by human beings, that's how yagna produces anna or food.(Yagna -> Rain -> Food).

अन्नाद्भवन्ति भुतानि पर्जन्याद्न्नसम्भव​:।

यज्ञाद्भवतिपर्जन्यो यज्ञ: कर्मसमुद्भव ॥३.१४॥

All living bodies subsist on food grains, which are produced from rains. Rains are produced by performance of yajna [sacrifice], and yajna is born of prescribed duties. BG 3.14

Further Sri Krishna says that Yagna is born out of karma and karma from Bramhan.

Point to be noted: Yagna means Sacrifice and there are a lot of categories of Yagna. Out of which Japa yagna is the best one. So even Japa yagna helps in sustainment of environment, it is not necessary to do fire rituals.

On a side note I would like add some scientific speculation.

Its highly unlikely that the Ghee burnt in Agnihotra and Yagnas, would burn(remember combustion is oxidation reaction consumes oxygen instead of releasing oxygen) and create oxygen to purify atmoshpere.

  • This verse already quoted in question Feb 27, 2017 at 7:55
  • @RakeshJoshi What do you mean it's already quoted in question. I am talking about correct interpretation of the verse. So it needs to be quoted again.
    – Yogi
    Feb 28, 2017 at 9:11

The meaning of annam can be here vidyà, kàla, màyà, kalà, ràga, niyati. All these are kankukas whose origin is in màyà tattva. Màyà tattva is responsible for binding the individual self by creating an illusion of individuality. Now the verse can be understood as

From annam which is an undivided object of experience or which is kankukas emerge the multitude of creatures. Annam comes from parjanya who (as the enjoyer of object) is of the nature of consciousness. This is because the objects of enjoyment gain their existence only as a result of their contact with the enjoyer. Parjanya becomes the enjoyer through sacrifice, which is the act of enjoyment. The act of enjoyment is the result of freedom (svàtantrya which is the absolute freedom or autonomy of Shiva responsible for creation) of the kriyasakti of Parmeshvara.

Thus yajnà is not always physical, it can also be an act of enjoyment full of awareness. E.g, Partaking food while taking our consciousness to the chewing is a Yajna, & sense organs are Demigods.

Ref: BG by Abhinavgupta

  • but what about physical yajnas ? are they helpful ? Feb 24, 2017 at 11:54
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    I don't know whether there will be an established fact in regards of science or not. But it is irrelevant, we can perform this yajnà. :) Feb 24, 2017 at 11:57
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    But I am also waiting for an answer for physical yajnà now. Feb 24, 2017 at 12:05

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