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अग्न्याधेय ॥ Agnaadheya is technically the process by which the sacred fire or agnihotram is newly established in the kundas along with the chanting of mantras as prescribed by Grhyasutras and Srauta sutras. This process is generally similar across all vedic srauta sutras, with a few differences. Some aspects are as follows  

अग्न्याधेय ॥ Agnaadheya is technically the process by which the sacred fire or agnihotram is newly established in the kundas along with the chanting of mantras as prescribed by Grhyasutras and Srauta sutras. This process is generally similar across all vedic srauta sutras, with a few differences. Some aspects are as follows  

==== नक्षत्राणि ॥ Nakshatras ====

==== नक्षत्राणि ॥ Nakshatras ====

This ceremony is performed when chandra (moon) is situated in certain nakshatras. Krittika, rohini, margasira, phalguni, vishakha and uttara, hasta, chitta and sravana stars are preferred according to different Srauta sutras <ref>Asvalayana Srauta Sutram [https://sa.wikisource.org/wiki/%E0%A4%86%E0%A4%B6%E0%A5%8D%E0%A4%B5%E0%A4%B2%E0%A4%BE%E0%A4%AF%E0%A4%A8_%E0%A4%B6%E0%A5%8D%E0%A4%B0%E0%A5%8C%E0%A4%A4%E0%A4%B8%E0%A5%82%E0%A4%A4%E0%A5%8D%E0%A4%B0%E0%A4%AE%E0%A5%8D/%E0%A4%85%E0%A4%A7%E0%A5%8D%E0%A4%AF%E0%A4%BE%E0%A4%AF%E0%A4%83_%E0%A5%A8 (2.1.10)]</ref><ref>Aapasthamba Srauta Sutram [https://sa.wikisource.org/wiki/%E0%A4%86%E0%A4%AA%E0%A4%B8%E0%A5%8D%E0%A4%A4%E0%A4%AE%E0%A5%8D%E0%A4%AC%E0%A5%80%E0%A4%AF%E0%A4%82_%E0%A4%B6%E0%A5%8D%E0%A4%B0%E0%A5%8C%E0%A4%A4%E0%A4%B8%E0%A5%82%E0%A4%A4%E0%A5%8D%E0%A4%B0%E0%A4%AE%E0%A5%8D/%E0%A4%AA%E0%A5%8D%E0%A4%B0%E0%A4%B6%E0%A5%8D%E0%A4%A8%E0%A4%83_%E0%A5%A6%E0%A5%AB (5.3.3)]</ref><blockquote>कृत्तिकासु रोहिण्यां मृगशिरसि फल्गुनीषु विशाखयोरुत्तरयोः प्रोष्ठपदयोः ॥ १० (Asva. Srau. Sutr. 2.1.10) </blockquote><blockquote>kr̥ttikāsu rōhiṇyāṁ mr̥gaśirasi phalgunīṣu viśākhayōruttarayōḥ prōṣṭhapadayōḥ ॥ 10 (Asva. Srau. Sutr. 2.1.10)</blockquote><blockquote>कृत्तिकासु ब्राह्मण आदधीत मुख्यो ब्रह्मवर्चसी भवति ॥ ३ गृहांस्तस्याग्निर्दाहुको भवति ॥ ४ (Apas. Srau. Sutr. 5.3.3)</blockquote><blockquote>kr̥ttikāsu brāhmaṇa ādadhīta mukhyō brahmavarcasī bhavati ॥ 3 gr̥hāṁstasyāgnirdāhukō bhavati ॥ 4 (Apas. Srau. Sutr. 5.3.3 and 4)</blockquote>

This ceremony is performed when chandra (moon) is situated in certain nakshatras. Krittika, rohini, margasira, phalguni, vishakha and uttara, hasta, chitta and sravana stars are preferred according to different Srauta sutras <ref name=":1">[https://sa.wikisource.org/wiki/%E0%A4%86%E0%A4%B6%E0%A5%8D%E0%A4%B5%E0%A4%B2%E0%A4%BE%E0%A4%AF%E0%A4%A8_%E0%A4%B6%E0%A5%8D%E0%A4%B0%E0%A5%8C%E0%A4%A4%E0%A4%B8%E0%A5%82%E0%A4%A4%E0%A5%8D%E0%A4%B0%E0%A4%AE%E0%A5%8D/%E0%A4%85%E0%A4%A7%E0%A5%8D%E0%A4%AF%E0%A4%BE%E0%A4%AF%E0%A4%83_%E0%A5%A8 Asvalayana Srauta Sutram Adhyaya 2] (2.3.2)</ref><ref>[https://sa.wikisource.org/wiki/%E0%A4%86%E0%A4%AA%E0%A4%B8%E0%A5%8D%E0%A4%A4%E0%A4%AE%E0%A5%8D%E0%A4%AC%E0%A5%80%E0%A4%AF%E0%A4%82_%E0%A4%B6%E0%A5%8D%E0%A4%B0%E0%A5%8C%E0%A4%A4%E0%A4%B8%E0%A5%82%E0%A4%A4%E0%A5%8D%E0%A4%B0%E0%A4%AE%E0%A5%8D/%E0%A4%AA%E0%A5%8D%E0%A4%B0%E0%A4%B6%E0%A5%8D%E0%A4%A8%E0%A4%83_%E0%A5%A6%E0%A5%AB Aapasthamba Srauta Sutram Prasna 5] (5.3.3)</ref><blockquote>कृत्तिकासु रोहिण्यां मृगशिरसि फल्गुनीषु विशाखयोरुत्तरयोः प्रोष्ठपदयोः ॥ १० (Asva. Srau. Sutr. 2.1.10) </blockquote><blockquote>kr̥ttikāsu rōhiṇyāṁ mr̥gaśirasi phalgunīṣu viśākhayōruttarayōḥ prōṣṭhapadayōḥ ॥ 10 (Asva. Srau. Sutr. 2.1.10)</blockquote><blockquote>कृत्तिकासु ब्राह्मण आदधीत मुख्यो ब्रह्मवर्चसी भवति ॥ ३ गृहांस्तस्याग्निर्दाहुको भवति ॥ ४ (Apas. Srau. Sutr. 5.3.3)</blockquote><blockquote>kr̥ttikāsu brāhmaṇa ādadhīta mukhyō brahmavarcasī bhavati ॥ 3 gr̥hāṁstasyāgnirdāhukō bhavati ॥ 4 (Apas. Srau. Sutr. 5.3.3 and 4)</blockquote>

==== ऋतु ॥ Seasons ====

==== ऋतु ॥ Seasons ====

The people of different sections are advised to establish fire in different seasons - Brahmanas in vasanta or spring season, while the kshatriya and vaishya varnas can establish it in summer, rainy and autumn seasons<ref name=":1222222" />.

The people of different sections are advised to establish fire in different seasons - Brahmanas in vasanta or spring season, while the kshatriya and vaishya varnas can establish it in summer, rainy and autumn seasons<ref name=":1222222" />.

The performer of Agnihotra is obliged to rear a cow primarily for providing milk as havis to devatas. The milk vessel which must be an earthen pot with a straight brim is called ‘agnihotra-sthālī’ and the ladle is called ‘agnihotrahavaṇī.’<ref name=":0222222222" /><ref name=":1222222" /> Milk products like dadhi (curds), ajyam (ghee) are also offered.

The performer of Agnihotra is obliged to rear a cow primarily for providing milk as havis to devatas. The milk vessel which must be an earthen pot with a straight brim is called ‘agnihotra-sthālī’ and the ladle is called ‘agnihotrahavaṇī.’<ref name=":0222222222" /><ref name=":1222222" /> Milk products like dadhi (curds), ajyam (ghee) are also offered.

==== काम्यकर्म ॥ Kaamyakarma ====

==== काम्यकर्म ॥ Kaamyakarma ====

Although performing agnihotra is a regular activity, it is also performed to attain some special desires called as Kaamyakarma with varying aahutidravyas<ref>Asvalayana Srauta Sutram [https://sa.wikisource.org/wiki/%E0%A4%86%E0%A4%B6%E0%A5%8D%E0%A4%B5%E0%A4%B2%E0%A4%BE%E0%A4%AF%E0%A4%A8_%E0%A4%B6%E0%A5%8D%E0%A4%B0%E0%A5%8C%E0%A4%A4%E0%A4%B8%E0%A5%82%E0%A4%A4%E0%A5%8D%E0%A4%B0%E0%A4%AE%E0%A5%8D/%E0%A4%85%E0%A4%A7%E0%A5%8D%E0%A4%AF%E0%A4%BE%E0%A4%AF%E0%A4%83_%E0%A5%A8 (2.3.2)]</ref>.<blockquote>यवागूरोदनो दधि समिग्रामकामान्नाद्यकामेन्द्रियकाम-तेजस्कामानां २ (Asva. Srau. Sutr 2.3.2) </blockquote><blockquote>yavāgūrōdanō dadhi samigrāmakāmānnādyakāmēndriyakāma-tējaskāmānāṁ 2 (Asva. Srau. Sutr 2.3.2)</blockquote><blockquote>Meaning : Yavaagu (gruel of Yavagu rice) is offered for acquiring leadership over villages, and curd is offered for attaining strength. </blockquote>

Although performing agnihotra is a regular activity, it is also performed to attain some special desires called as Kaamyakarma with varying aahutidravyas<ref name=":1" />.<blockquote>यवागूरोदनो दधि समिग्रामकामान्नाद्यकामेन्द्रियकाम-तेजस्कामानां २ (Asva. Srau. Sutr 2.3.2) </blockquote><blockquote>yavāgūrōdanō dadhi samigrāmakāmānnādyakāmēndriyakāma-tējaskāmānāṁ 2 (Asva. Srau. Sutr 2.3.2)</blockquote><blockquote>Meaning : Yavaagu (gruel of Yavagu rice) is offered for acquiring leadership over villages, and curd is offered for attaining strength. </blockquote>

==== अग्नि मन्थन ॥ Agni Manthana ====

==== अग्नि मन्थन ॥ Agni Manthana ====

Agni manthana is the process by which the fire is generated by the manthana (literally churning) or friction of two sami sticks. Rig veda mentions the process of kindling of fire from Arani (fire sticks) made from Sami and Asvattha trees. This is also called Agni Samaaropa<ref name=":02222">[http://www.kamakoti.org/kamakoti/dharmasindhu/bookview.php?chapnum=23 Dharmasindhu as given by Kanchi Kamakoti] </ref>.   

Agni manthana is the process by which the fire is generated by the manthana (literally churning) or friction of two sami sticks. Rig veda mentions the process of kindling of fire from Arani (fire sticks) made from Sami and Asvattha trees. This is also called Agni Samaaropa<ref name=":02222">[http://www.kamakoti.org/kamakoti/dharmasindhu/bookview.php?chapnum=23 Dharmasindhu as given by Kanchi Kamakoti] </ref>.   

The stick on top called the Uttara-arani is called Pururavas (Indra) and the lower arani called as Aadhara-arani is called Urvasi (Apsara). The rope used for manthana is called rasanaa. The process of generating fire is also described in various Srauta sutra texts apart from Taittriya Brahmana in the पौरोडाशिक काण्ड under अग्न्याधानम् prapathaka <ref>Taittriya Brahmana [https://sa.wikisource.org/wiki/तैत्तिरीयब्राह्मणम्_(विस्वरपाठः)/काण्डः_१/प्रपाठकः_०१ (1.1.9.1)]</ref>. <blockquote>शमीगर्भादग्निं मन्थति । एषा वा अग्नेर्यज्ञिया तनूः । (Tait. Brah. 1.1.9.1)</blockquote><blockquote>śamīgarbhādagniṁ manthati । ēṣā vā agnēryajñiyā tanūḥ । (Tait. Brah. 1.1.9.1)</blockquote><blockquote>Meaning : From the hearth of sami (sticks) Agni is churned. This is the yagna body of Agni.</blockquote>

The stick on top called the Uttara-arani is called Pururavas (Indra) and the lower arani called as Aadhara-arani is called Urvasi (Apsara). The rope used for manthana is called rasanaa. The process of generating fire is also described in various Srauta sutra texts apart from Taittriya Brahmana in the पौरोडाशिक काण्ड under अग्न्याधानम् prapathaka <ref>[https://sa.wikisource.org/wiki/तैत्तिरीयब्राह्मणम्_(विस्वरपाठः)/काण्डः_१/प्रपाठकः_०१ Taittriya Brahmana Kanda 1] (1.1.9.1)</ref>. <blockquote>शमीगर्भादग्निं मन्थति । एषा वा अग्नेर्यज्ञिया तनूः । (Tait. Brah. 1.1.9.1)</blockquote><blockquote>śamīgarbhādagniṁ manthati । ēṣā vā agnēryajñiyā tanūḥ । (Tait. Brah. 1.1.9.1)</blockquote><blockquote>Meaning : From the hearth of sami (sticks) Agni is churned. This is the yagna body of Agni.</blockquote>

==== समिधा ॥ Samidha ====

==== समिधा ॥ Samidha ====

Agnaadheya ceremony starts with the collection of arani (the samidha wood) and ends in purnaahuti (offering at the end of ceremony). Once the fire is kindled by Arani, it is maintained by the addition of smaller pieces of wood called Samidhas into the Agni. These pieces of wood are collected with bark and are 10 to 12 inches long. This process is called "Pratyavaroha"<ref name=":02222" />.Agni samaaropa and pratyavaroha are to be executed by the karta himself and not by others except by his wife who might perform the Pratyavaroha part.   

Agnaadheya ceremony starts with the collection of arani (the samidha wood) and ends in purnaahuti (offering at the end of ceremony). Once the fire is kindled by Arani, it is maintained by the addition of smaller pieces of wood called Samidhas into the Agni. These pieces of wood are collected with bark and are 10 to 12 inches long. This process is called "Pratyavaroha"<ref name=":02222" />.Agni samaaropa and pratyavaroha are to be executed by the karta himself and not by others except by his wife who might perform the Pratyavaroha part.   

At the time of investing the yagnopaveeta, he is taught to perform daily aahuti in the fire called '''Praajapatyaagni check'''.   

At the time of investing the yagnopaveeta, he is taught to perform daily aahuti in the fire called '''Praajapatyaagni check'''.   

Brahmachari's should perform two activities - Sandhyavandanam and Samidhaadhanam in Agni everyday in the morning and evening. In Vishnupurana (3.9.3)<ref>Vishnupurana from [http://vedicreserve.mum.edu/puran.htm Maharshi University] </ref><blockquote>उभे संध्ये रविं भूप तथैवामग्निं समाहितः । उपतिष्ठेत्तदा कुर्य्याद्गुरोरप्यभिवागनम्॥</blockquote><blockquote>A bachelor should with devotion pray to surya and agni during both sandhyakaalas and also pay respects to his guru. </blockquote>आग्निवेश्यगृह्यसूत्रम् ॥ Agnivesyagrhyasutram (1.1.4)<ref name=":0">Agnivesya Grhya Sutra [https://sa.wikisource.org/wiki/%E0%A4%86%E0%A4%97%E0%A5%8D%E0%A4%A8%E0%A4%BF%E0%A4%B5%E0%A5%87%E0%A4%B6%E0%A5%8D%E0%A4%AF%E0%A4%97%E0%A5%83%E0%A4%B9%E0%A5%8D%E0%A4%AF%E0%A4%B8%E0%A5%82%E0%A4%A4%E0%A5%8D%E0%A4%B0%E0%A4%AE%E0%A5%8D (1.1.4)]</ref> outlines the process and mantras as follows <blockquote>अथ सप्त पालाशीः समिध आर्द्रा अप्रच्छिन्नाग्राः प्रादेशमात्रा घृताक्ता अभ्याधापयति ।</blockquote><blockquote>Summary : Seven Palasa samidhas which do not have split ends (with their given dimension) along with ghee are to be offered.</blockquote><blockquote>अग्नये समिधमाहार्षं बृहते जातवेदसे । यथा त्वमग्ने समिधा समिध्यस एवं मां मेधया प्रज्ञया प्रजया पशुभिर्ब्रह्मवर्चसेनान्नाद्येन समेधय स्वाहा इत्येकाम् । अग्नये समिधौ इति द्वे । अग्नये समिध इति चतस्रः । <ref name=":0" /></blockquote>Here in Asvalaayana Grhya sutras also the mantras to be recited during samidhaadhana are given<blockquote>मन्त्रेण हैके अग्नये समिधमाहार्षं बृहते जातवेदसे तया त्वमग्ने वर्द्धस्व समिधा ब्रह्मणा वयं स्वाहेति ... <ref>Asvalaayana Grhya Sutras [https://sa.wikisource.org/wiki/%E0%A4%86%E0%A4%B6%E0%A5%8D%E0%A4%B5%E0%A4%B2%E0%A4%BE%E0%A4%AF%E0%A4%A8%E0%A4%97%E0%A5%83%E0%A4%B9%E0%A5%8D%E0%A4%AF%E0%A4%B8%E0%A5%82%E0%A4%A4%E0%A5%8D%E0%A4%B0%E0%A4%AE%E0%A5%8D (8.1.21.1)]</ref></blockquote>

Brahmachari's should perform two activities - Sandhyavandanam and Samidhaadhanam in Agni everyday in the morning and evening. In Vishnupurana (3.9.3)<ref>Vishnupurana from [http://vedicreserve.mum.edu/puran.htm Maharshi University] </ref><blockquote>उभे संध्ये रविं भूप तथैवामग्निं समाहितः । उपतिष्ठेत्तदा कुर्य्याद्गुरोरप्यभिवागनम्॥</blockquote><blockquote>A bachelor should with devotion pray to surya and agni during both sandhyakaalas and also pay respects to his guru. </blockquote>आग्निवेश्यगृह्यसूत्रम् ॥ Agnivesyagrhyasutram (1.1.4)<ref name=":0">Agnivesya Grhya Sutra [https://sa.wikisource.org/wiki/%E0%A4%86%E0%A4%97%E0%A5%8D%E0%A4%A8%E0%A4%BF%E0%A4%B5%E0%A5%87%E0%A4%B6%E0%A5%8D%E0%A4%AF%E0%A4%97%E0%A5%83%E0%A4%B9%E0%A5%8D%E0%A4%AF%E0%A4%B8%E0%A5%82%E0%A4%A4%E0%A5%8D%E0%A4%B0%E0%A4%AE%E0%A5%8D (1.1.4)]</ref> outlines the process and mantras as follows <blockquote>अथ सप्त पालाशीः समिध आर्द्रा अप्रच्छिन्नाग्राः प्रादेशमात्रा घृताक्ता अभ्याधापयति ।</blockquote><blockquote>Summary : Seven Palasa samidhas which do not have split ends (with their given dimension) along with ghee are to be offered.</blockquote><blockquote>अग्नये समिधमाहार्षं बृहते जातवेदसे । यथा त्वमग्ने समिधा समिध्यस एवं मां मेधया प्रज्ञया प्रजया पशुभिर्ब्रह्मवर्चसेनान्नाद्येन समेधय स्वाहा इत्येकाम् । अग्नये समिधौ इति द्वे । अग्नये समिध इति चतस्रः । <ref name=":0" /></blockquote>Here in Asvalaayana Grhya sutras also the mantras to be recited during samidhaadhana are given<blockquote>मन्त्रेण हैके अग्नये समिधमाहार्षं बृहते जातवेदसे तया त्वमग्ने वर्द्धस्व समिधा ब्रह्मणा वयं स्वाहेति ... (Asva. Grhy. Sutra 8.1.21.1)<ref name=":2">[https://sa.wikisource.org/wiki/%E0%A4%86%E0%A4%B6%E0%A5%8D%E0%A4%B5%E0%A4%B2%E0%A4%BE%E0%A4%AF%E0%A4%A8%E0%A4%97%E0%A5%83%E0%A4%B9%E0%A5%8D%E0%A4%AF%E0%A4%B8%E0%A5%82%E0%A4%A4%E0%A5%8D%E0%A4%B0%E0%A4%AE%E0%A5%8D Asvalaayana Grhya Sutras]</ref></blockquote>

=== औपासन ॥ Aupaasana  ===

=== औपासन ॥ Aupaasana  ===

During vivaha samskara the one is initiated to enter the grihasta ashram by setting up the आवसथ्याग्निः ॥ Aavasatyaagni<ref>Paraaskara Grhya Sutras [https://sa.wikisource.org/wiki/%E0%A4%AA%E0%A4%BE%E0%A4%B0%E0%A4%B8%E0%A5%8D%E0%A4%95%E0%A4%B0%E0%A4%97%E0%A5%83%E0%A4%B9%E0%A5%8D%E0%A4%AF%E0%A4%B8%E0%A5%82%E0%A4%A4%E0%A5%8D%E0%A4%B0%E0%A4%AE%E0%A5%8D (1.2.1)]</ref> to the north of the vedi. (Paaraskara Grhya Sutra  Adhyaya 1 Kandika 2 Mantra 1) <blockquote>आवसथ्याधानं दारकाले १ दायाद्यकाल एकेषाम् २ ॥ āvasathyādhānaṁ dārakālē 1 dāyādyakāla ēkēṣām 2 (Paara.Grhy.Sutra. 1.2.1).</blockquote><blockquote>Meaning : The setting up of Aavasatya agni is (performed) at the time of wedding. At the time of inheritance according to some. </blockquote>He receives additional procedures to perform nitya Agnihotram. A few features include  

During vivaha samskara the one is initiated to enter the grihasta ashram by setting up the आवसथ्याग्निः ॥ Aavasatyaagni<ref>[https://sa.wikisource.org/wiki/%E0%A4%AA%E0%A4%BE%E0%A4%B0%E0%A4%B8%E0%A5%8D%E0%A4%95%E0%A4%B0%E0%A4%97%E0%A5%83%E0%A4%B9%E0%A5%8D%E0%A4%AF%E0%A4%B8%E0%A5%82%E0%A4%A4%E0%A5%8D%E0%A4%B0%E0%A4%AE%E0%A5%8D Paraaskara Grhya Sutras]</ref> to the north of the vedi. (Paaraskara Grhya Sutra  Adhyaya 1 Kandika 2 Mantra 1) <blockquote>आवसथ्याधानं दारकाले १ दायाद्यकाल एकेषाम् २ ॥ āvasathyādhānaṁ dārakālē 1 dāyādyakāla ēkēṣām 2 (Paara.Grhy.Sutra. 1.2.1).</blockquote><blockquote>Meaning : The setting up of Aavasatya agni is (performed) at the time of wedding. At the time of inheritance according to some. </blockquote>He receives additional procedures to perform nitya Agnihotram. A few features include  

* Starting after marriage, a grihasta (along with his wife) offers aahuti  twice daily at twilight time (dawn and dusk) in the Gaarhapatya agni, this is also called as Aupasana.<ref name=":0222222">Venkateswara Rao. Potturi (2010) ''Paaramaathika Padakosam'' Hyderabad: Msko Books</ref>  For Ex: Valmiki Ramayana states that Sri Ramachandra and Lakshmana tended agnihotram while they lived in Panchavati '''(Ramayana reference needed)'''.

* Starting after marriage, a grihasta (along with his wife) offers aahuti  twice daily at twilight time (dawn and dusk) in the Gaarhapatya agni, this is also called as Aupasana.<ref name=":0222222">Venkateswara Rao. Potturi (2010) ''Paaramaathika Padakosam'' Hyderabad: Msko Books</ref>  For Ex: Valmiki Ramayana states that Sri Ramachandra and Lakshmana tended agnihotram while they lived in Panchavati '''(Ramayana reference needed)'''.

* Aahutis must be offered to Surya in the morning and Agni in the evening. Svistakrut is the second devata.  

* Aahutis must be offered to Surya in the morning and Agni in the evening. Svistakrut is the second devata.  

* Nitya agnihotra is not to be performed by an uninitiated bachelor or women '''(Reference needed)'''.   

* Nitya agnihotra is not to be performed by an uninitiated bachelor or women '''(Reference needed)'''.   

=== आहीताग्निः ॥ Aahitagni ===

=== आहीताग्निः ॥ Aahitagni ===

Aahitagni is the sapatinika yajamani who has established the agnihotra by performing the Agnyadheya ceremony. One who worships Ekagni as well as the Tretagni is known as Aahitagni.<ref>Kannan, P. R. [https://sanskritdocuments.org/sites/prkannan/Balabodha%20Sangraham%20-%203.pdf Balabodha Sangraha - 3] (Topic Efficacies of Agni Upasana) Kanchi Kaamkoti Peetham</ref>

Aahitagni is the sapatinika yajamani who has established the agnihotra by performing the Agnyadheya ceremony. One who worships Ekagni as well as the Tretagni is known as Aahitagni.<ref name=":3">Kannan, P. R. [https://sanskritdocuments.org/sites/prkannan/Balabodha%20Sangraham%20-%203.pdf Balabodha Sangraha - 3] (Topic Efficacies of Agni Upasana) Kanchi Kaamkoti Peetham</ref>

* The grihastha who never performed any Haviryagna and never studied Vedas, and whose father or forefathers never performed yaaga are not eligible to perform some yaagas/yagnas. Example : Somayaaga<ref name=":1222222" />.  

* The grihastha who never performed any Haviryagna and never studied Vedas, and whose father or forefathers never performed yaaga are not eligible to perform some yaagas/yagnas. Example : Somayaaga<ref name=":1222222" />.  

* Eligibility for a grihastha to perform other yaagas or yagnas will be obtained once he regularly performs Aupaasana at his house on a daily basis and after he learns the relevant vaidika procedures to conduct them <ref name=":1222222" /><ref name=":0222222" />. For example: Agnisthoma is the first of the 5 Jyotisthomas or Somayaaga. Performance of haviryagna and some isthis is a prerequisite for conducting a Somayaaga.  

* Eligibility for a grihastha to perform other yaagas or yagnas will be obtained once he regularly performs Aupaasana at his house on a daily basis and after he learns the relevant vaidika procedures to conduct them <ref name=":1222222" /><ref name=":0222222" />. For example: Agnisthoma is the first of the 5 Jyotisthomas or Somayaaga. Performance of haviryagna and some isthis is a prerequisite for conducting a Somayaaga.  

The tradition of ‘Aahitagnis’ and ‘Srauta priests’ continues in South India and they perform Vedic rituals as and when possible. These priests inherited the tradition of Vedic ritual practices from their ancestors and perform Vedic rituals even today.<ref name=":0222222222" />

The tradition of ‘Aahitagnis’ and ‘Srauta priests’ continues in South India and they perform Vedic rituals as and when possible. These priests inherited the tradition of Vedic ritual practices from their ancestors and perform Vedic rituals even today.<ref name=":0222222222" />

== पञ्चमहायज्ञाः || Panchamahayagnas ==

== पञ्चमहायज्ञाः || Panchamahayagnas ==

After the Pratah Homa or after the Madhyaanika Sandhya or after the Vaisvedeva, Brahma yagna has to be performed. It includes the study of vedas, itihasas and puranas and slight variations are seen according to the shakaas followed.  

Panchamahayagnas are described in many Grhyasutras. After the Pratah Homa or after the Madhyaanika Sandhya or after the Vaisvedeva, Brahma yagna has to be performed. It includes the study of vedas, itihasas and puranas and slight variations are seen according to the shakaas followed.  

 

== Agni in Yagnas ==

== Agni in Yagnas ==

Agni used for Aupasana during marriage should be used for Agnayadhaanam and divided into two parts  

Agni used for Aupasana during marriage should be used for Agnayadhaanam and divided into two parts  

Grhyagni is used for performing grhyakarmas and is also called as "Ekagni". Details of the grhyakarmas to be performed are found in Ekagnikandam of Aapastambha ghyasutras belonging to Krishna Yajurveda.

Grhyagni is used for performing grhyakarmas and is also called as "Ekagni". Details of the grhyakarmas to be performed are found in Ekagnikandam of Aapastambha ghyasutras belonging to Krishna Yajurveda.

Srautagni is used for Srauta karmas. From the Aupasanaagni Agnyaadhanam for the Srautaagni is to be performed in order to do Srautakarmas and start yaagas. The three srautagnis are called Tretagnis.  

Srautagni is used for Srauta karmas. From the Aupasanaagni Agnyaadhanam for the Srautaagni is to be performed in order to do Srautakarmas and start yaagas. The three srautagnis are called Tretagnis.<ref name=":3" />

=== त्रेताज्ञयः ॥ Three Fires ===

=== त्रेताज्ञयः ॥ Three Fires ===

All Srauta yagnas or yaagas are associated with त्रेताज्ञयः the three Agni's.<ref name=":0222222" /> However, not all three fires are lighted and maintained at all times. त्रेताज्ञयः the three fires are kindled in performance of yaagas. Somayaagas require the kindling of all three fires whereas others do not require so<ref name=":1222222" />.     

All Srauta yagnas or yaagas are associated with त्रेताज्ञयः the three Agni's.<ref name=":0222222" /> However, not all three fires are lighted and maintained at all times. त्रेताज्ञयः the three fires are kindled in performance of yaagas. Somayaagas require the kindling of all three fires whereas others do not require so<ref name=":1222222" />.