satya - Satya; tretā - Tretā; dvāpara - Dvāpara; kali - Kali; cāri-yuga - four ages; jāni - we know; sei - these; cāri-yuge - in the four ages; divya - divine; eka-yuga - one age; māni - we consider.

We know that there are four ages [yugas], namely Satya, Tretā, Dvāpara and Kali. These four together constitute one divya-yuga.