The word SAT is used in the sense of Reality and of Goodness; and also O Partha the word SAT is used in the sense of an auspicious act.

sadbhave = in the sense of the nature of the Supreme; sādhubhāve = in the sense of the nature of the devotee; ca = also; sat = the word sat; iti = thus; etat = this; prayujyate = is used; praśaste = in bona fide; karmaṇi = activities; tathā = also; sacchabdaḥ = the sound sat; pārtha = O son of Pritha; yujyate = is used;