kṛṣṇera - of Lord Kṛṣṇa; śabda-guṇe - by the qualities of the sound; prabhura - of Śrī Caitanya Mahāprabhu; mana - the mind; ākarṣilā - was attracted; kā stry aṅga te ślokera - of the verse beginning with the words kā stry aṅga te; artha - the meaning; āveśe - in ecstasy; karilā - described.

That chapter also tells how the attributes of Kṛṣṇa’s sound attracted the mind of Śrī Caitanya Mahāprabhu, who then described in ecstasy the meaning of the “kā stry aṅga te” verse.