sAmaveda punyAhavAchana mantra

punyAhavAchana rite is one of the most important and commonly performed of all Hindu ceremonies. It is done as a prelude to every  important  samskAra (sacrament) and yagya . After periods of impurity (death & birth) the ceremony is done as the principle rite. The two  elements involved in the ceremony are :-
1. ) Purification ( shuddhI )
2.) Generating auspiciousness ( svastIvAchana )

Purification here has nothing to do with cleanliness as understood in an hygienic sense but rather freedom from psycho-spiritual contamination.  The dynamic of the ceremony is based on the belief that those (priests, sages, monks etc) who are dedicated to truth and spiritual illumination develop a psychic power to transform others through speech — whatever truth-speakers say will come true. So the process is for the host yajamAna  to formally request invited Brahmins to say nice things ( svastIvAchanaM )  and to bless the family by chanting Vedic verses.  Usually on all auspicious occasions  such as birth, initiations, marriages etc. the punyAhavAchan  is preceded by ganpatI pujA and on inauspicious occasions (those pertaining to death) it is done alone.  In case of sAma veda , mantrAs are sung.
All of the  punyAha vAchana   sAmagAnas come from purvArchika section.

1.)  kumbha pratishTha sAma
Two sAma-yonI riks    ( sAmaveda samhitA rik 321
and 449. ) .
The first two sAma are known as brahma or r^ita sAma and the third is known as sAntanike sAma.
This all are sung during kumbha pratishTha .

sAma yonI

sAma gAna

sAma yonI

2.)  punyAhavAchana japa mantra
This have  seven sAma-yonI riks ( sAmaveda samhitA rik
500, 350, 91, 274, 321, 565 and 169) .
The names for the seven sAma  used in japa are:

1) tarantasya sAma

2) SuddhASuddhIyE sAma

3)  bArhaspatya sAma

4)  IndrasyAbhayaN^kara sAma 
5)  brahma sAma

6) arka pushpa sAma

7)  vAmadEvyam sAma

sAma yonI

sAma yonI

sAma gAna

References :-

1) sAma upAkarma prayoga
( tamiz )

2) sAmaveda punyAhavAchana ( Sanskrit + english )

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