dhṛtiḥ syāt pūrṇatā-jñāna-
duḥkhābhāvottamāptibhiḥ
aprāptātīta-naṣṭārthā-
nabhisamśocanādi-kṛt
dhṛtiḥ - endurance; syāt - may become; pūrṇatā - fullness; jñāna - knowledge of the Supreme Personality of Godhead; duḥkha-abhāva - the absence of misery; uttama-āptibhiḥ - by attainment of the highest platform of perfection; aprāpta - not obtained; atīta - gone; naṣṭa - destroyed; artha - object, goal; anabhisamśocana - absence of lamentation; ādi - and so on; kṛt - doing.
This verse is found in the Bhakti-rasāmṛta-sindhu (2.4.144).