"Sathya Yuga: the Age of Truth; Tretha Yuga: the era when the Divine elements were on one side and the demonic on the other; Dwapara Yuga: the era in which the Divine and demonic elements were in the same kingdom; Kali Yuga: the Age of Iron; the age of all-round moral decline, when the Divine and demonic forces are battling in each human being."