The various cycles called Krita, Treta, Dvapara, and Kali, O foremost of Bharata's race, all depend on the conduct of the king. It is the king who makes the cycles.
कृतं त्रेता द्वापरं च कलिश्च भरतर्षभ। राजवृत्तानि सर्वाणि राजैव युगमुच्यते॥