स [ sa ] [ sá ]6 the actual base for the nom. case of the 3rd pers. pron. [ tád ] q.v. ( occurring only in the nom. sg. mf. ( [ sá ] or [ sás ] , [ sā ] ) , and in the Ved. loc. ( [ sásmin ] Lit. RV. i , 152 , 6 ; i , 174 , 4 ; x , 95 , 11 ) ; the final [ s ] of the nom. m. is dropped before all consonants ( except before [ p ] in Lit. RV. v , 2 , 4 , and before [ t ] in Lit. RV. viii , 33 , 16 ) and appears only at the end of a sentence in the form of Visarga ; [ sa ] occasionally blends with another vowel ( as in [ saīṣaḥ ] ) ; and it is often for emphasis connected with another pron. as with [ aham ] , [ tvam ] , [ eṣa ] , [ ayam ] ( e.g. [ so 'ham ] [ sa tvam ] , " I (or thou) that very person " ; cf. under [ tád ] , p.434 ) , the verb then following in the 1st and 2nd pers. even if [ aham ] or [ tvam ] be omitted ( e.g. [ sa ] [ tvā pṛcchāmi ] " I that very person ask you " Lit. BṛĀrUp. ; [ sa ] [ vai no brūhi ] " do thou tell us " Lit. ŚBr. ) ; similarly , to denote emphasis , with [ bhavān ] ( e.g. [ sa bhavān vijayāya pratiṣṭhatām ] , " let your Highness set out for victory " Lit. Śak. ) ; it sometimes ( and frequently in the Brāhmaṇas ) stands as the first word of a sentence preceding a rel. pronoun or adv. such as [ ya ] , [ yad ] , [ yadi ] , [ yathā ] , [ ced ] ; in this position [ sa ] may be used pleonastically or as a kind of ind. , even where another gender or number is required ( e.g. [ sa yadi ] [ sthāvarā āpo bhananti ] , " if those waters are stagnant " Lit. ŚBr. ) ; in the Sāṃkhya , like [ eṣa ] , [ ka ] , and [ ya ] , is used to denote Purusha , " the Universal Soul " ) Lit. RV. ( cf. Zd. (hā) , (hA) ; Gk. 1 , 2. )