This Kali, therefore, with its rapidly increasing accumulation of sin, may come to an end in less than 10,000 years, its conventional period of existence, 360,000 years, being condensed into that short space of time. Judging from the signs of an advanced state of rottenness, already developed, it would seem as if the worst features which hasten its end may manifest themselves in less than a few hundred years. But, like wheels within wheels, the Satya, Tretā and Dwāpar cycles have their sway through its duration by turns. By this I mean that during the course of Kali (Iron Age) features and characteristics of the Golden, Silver and Copper Ages manifest themselves by turns all through it. Indeed, the spirit and attributes of these four cycles weigh the moral and physical atmosphere of each day and night. Supposing the average day begin at 6 A.M., the influence and the attributes of the Golden Age prevail from 6 A.M. to 3:36 P.M.; those of the Silver Age prevail from 3:36 P.M. to 10:48 P.M.; those of the Copper Age from 10:48 P.M. to 3:36 A.M., and those of the Iron Age from 3:36 A.M. to 6 A.M. Illumination and comparative calmness dwell within and without us from morning tip to high noon owing to the predominance of Sattwa, the predominant attribute of the Golden Age. From noon activity (Rāja) asserts itself, and by about 3 o'clock in the afternoon it gains full force when light (inside and out of us) is on the decline and calmness is disturbed, introducing the influence of the Silver Age, which lasts until about 11 at night, when Tama (Darkness) begins its reign and, combined with Rāja, holds the rule of the Copper Age. The signs of Tama are laziness, inaction, sleep, etc. We begin to experience these from it o'clock at night and until three in the morning slumber and gloom envelop us and Nature. But sleep and darkness are deepest from three to five in the morning, these hours are ruled by Kali, the Dark Age.