yadā - when; avatīrṇaḥ - incarnates; bhagavān - the Supreme Lord; kalkiḥ - Kalki; dharma-patiḥ - the master of religion; hariḥ - the Supreme Personality of Godhead; kṛtam - Satya-yuga; bhaviṣyati - will begin; tadā - then; prajā-sūtiḥ - the creation of progeny; ca - and; sāttvikī - in the mode of goodness.

When the Supreme Lord has appeared on earth as Kalki, the maintainer of religion, Satya-yuga will begin, and human society will bring forth progeny in the mode of goodness.