atah pumbhir dvija-srestha
atah-so; pumbhih-by the human being; dvija-sresthah-O best among the twice-born; varnasrama-institution of four castes and orders of life; vibhagasah-by the division of; svanusthitasya-of one's own prescribed duties; dharmasya-occupational; samsiddhih-highest perfection; hari-the Personality of Godhead; tosanam-pleasing.