Is sandhyavandanam ritual different for each vedic line? Or is it same for all brahmins no matter what veda they belong to?
However same the conceptual aspects of Sandhya Vandana for all the veda, they are slightly different for different Vedic lines and also even within the same Vedas like Shukla and Krishna Yajur vedas..
Between Rig + Yajur and Sama vedas the mantras for the following are different,
Praasanam- drinking a small drop of water while uttering Mantra to purify internally, and
Prayaschitta Arghyam - Offering small quantity of water (pouring it down with Hand) as a remedy for doing the Sandhyavandanam out of prescribed time.
Morning Praashna for Sama Veda:
Ahascha maa adithyascha punathu swaha
Morning Praashna for Rig and Yajur Veda:
Sooryashcha ma manyushcha manyu patayashcha manyukRutebhya paapebhyo rakshantam yad raatryaa paapa maa karsham manasaa vaachaa hastabhyam padbhyaam udareNa shishna raatreeh tadaa valumbatu yad kincha duritam mayi idam aham mama amRuta yonou soorya jyotishee juhomi svaahaa
Afternoon Praashna: Pretty much the Same for all vedas..
Aapa punanthu prithweem, prithwee pootha punathu maam Punanthu brahmanaspathir brahma pootha punathu maam Yad uchishta mabhojyam yadhwa ducharitham mama Sarvam punanthu mamopa asatham cha prathigraham swaha
Rig + Yajur: Agnishcha ma manyushcha manyu patayashcha manyu kRutebhya paapebhyo rakshantam yadahna paapama karsham manasaa vaachaa hastabhyam paadabhyam udareNa shishna ahastada valumbatu yad kinchid duritam mayi idamaham maam amRuta yonau satye jyotishee juhomi swaahaa
Sama Veda: Rathrischa ma varunascha punathu swaha.
Rig + yajur also differ with Sama Veda for Punar Marjana(Literally: Another Purification). This is to cleanse again, say if you utter the above lines in Anger! Manyu, is the God responsible for our Anger. Some Pandits told me Manyu is a brother of Saturn or Shaneeshwar. Strangely, Sama Veda does not propitiate Manyu in Praashnam. They are supposed to let Anger be I guess :-)
Once you cleanse yourself, you do Arghya which is the Single most important part of Sandhyavandhana - Water offering while chanting Gaayatri mantra that is suppose to Help Sun fight off crores of Evil demonic spirits that attack him Morning and Evening. They are called Mandeyha demonic Asuras ~300 million. Pop quiz: Why not afternoon? Accordingly, the Arghya offerings is more in the Morning and Evening...
You might ask, how an offering of water by some person on Earth going to help Sun.
Well, Duh! How did you miss to see that as a Homomorphically Encrypted action that is quantum entangled with Sun :-)?
Brahma, initiated this ritual especially for Brahmin men to help Sun.That's why Brahmins are suppose to help Earth as a whole by doing Sandhyavandhanam...
Invoke Gayatri devi and Chant Gayatri (to replenish your power to help Sun) and then finally Ask her to return to her Abode - Upasthanam.
Gaayatri Upasthanam - To let Gaayatri devi return to her original abode from whence she descended. The Upasthana Mantras are different as well for different Vedas probably to indicate that She takes a different path to reach you or also could be Different Rishis introduced different Mantras...
Here are some links...
https://ramanan50.wordpress.com/2015/08/21/rig-veda-sandhya-vandhana-mantras-english/ https://ramanan50.wordpress.com/2015/08/20/sama-veda-sandhyavandana-text-english/ https://www.scribd.com/doc/18663569/Yajurveda-Sandhyavandanam https://ramanan50.wordpress.com/tag/sandhyavandanam/