nishhTA tayaivAtma-vishuddhir-asya /
The latter half of the shloka says:
‘tenaiva samsAra-samUla-nAshaH’ :
through that alone the samsAra bondage is cut along with its roots.
‘paramAtma-vedanaM’ : the sparking of the jnAnaM about the paramAtmA.
‘Vishuddha-buddheH’ : to the one who has had his mind purified.