naivopayanty apacitiṁ kavayas taveśa
brahmāyuṣāpi kṛtam ṛddha-mudaḥ smarantaḥ
yo 'ntar bahis tanu-bhṛtām aśubhaṁ vidhunvann
ācārya-caittya-vapuṣā sva-gatiṁ vyanakti
na eva - not at all; upayanti - are able to express; apacitim - their gratitude; kavayaḥ - learned devotees; tava - Your; īśa - O Lord; brahma-āyuṣā - with a lifetime equal to Lord Brahmā's; api - in spite of; kṛtam - magnanimous work; ṛddha - increased; mudaḥ - joy; smarantaḥ - remembering; yaḥ - who; antaḥ - within; bahiḥ - outside; tanu-bhṛtām - of those who are embodied; aśubham - misfortune; vidhunvan - dissipating; ācārya - of the spiritual master; caittya - of the Supersoul; vapuṣā - by the forms; sva - own; gatim - path; vyanakti - shows.
This is a verse from Śrīmad-Bhāgavatam (11.29.6). It was spoken by Uddhava after he had been instructed in yoga by Śrī Kṛṣṇa.