trayodaśe - in the Thirteenth Chapter; mahāprabhura - of Lord Śrī Caitanya Mahāprabhu; janma - of the birth; vivaraṇa - the description; kṛṣṇa-nāma-saha - along with the holy name of Lord Kṛṣṇa; yaiche - in what way; prabhura - of the Lord; janama - the birth.

The thirteenth chapter describes the birth of Śrī Caitanya Mahāprabhu, which took place with the chanting of the holy name of Kṛṣṇa.