Changes

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 ॥ Agnivesyagrhyasutra (1.1.4)<ref name=":022">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=":022" /></blockquote>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=":222">[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>Samidhaadhaana vidhi outline is given in Balabodhini Sangraham - 3<ref name=":322">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> where the meanings of 13 mantras are explained. It is discontinued after marriage. 

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 ॥ Agnivesyagrhyasutra (1.1.4)<ref name=":022">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=":022" /></blockquote>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=":222">[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>Samidhaadhaana vidhi outline is given in Balabodhini Sangraham - 3<ref name=":322">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> where the meanings of 13 mantras are explained. It is discontinued after marriage.