I was reading about the duration of the material universe this evening, and this whole notion of time, puts presure on my insignificant tiny brain.
…The duration of the material universe is limited. It is manifested in cycles of kalpas. A kalpa is a day of Brahmā, and one day of Brahmā consists of a thousand cycles of four yugas or ages: Satya, Tretā, Dvāpara, and Kali. The cycle of Satya is characterized by virtue, wisdom and religion, there being practically no ignorance and vice, and the yuga lasts 1,728,000 years. In the Tretā-yuga vice is introduced, and this yuga lasts 1,296,000 years. In the Dvāpara-yuga there is an even greater decline in virtue and religion, vice increasing, and this yuga lasts 864,000 years. And finally in Kali-yuga (the yuga we have now been experiencing over the past 5,000 years) there is an abundance of strife, ignorance, irreligion and vice, true virtue being practically nonexistent, and this yuga lasts 432,000 years. (from purport Bg 8.17)
Even if I could grasp the extent of time in the material universe, that is just a fraction of the unlimited eternal time that continues after the termination of the yuga.
…Then the process is set rolling again. These four yugas, rotating a thousand times, comprise one day of Brahmā, the creator god, and the same number comprise one night. Brahmā lives one hundred of such “years” and then dies. These “hundred years” by earth calculations total to 311 trillion and 40 million earth years. By these calculations the life of Brahmā seems fantastic and interminable, but from the viewpoint of eternity it is as brief as a lightning flash. In the causal ocean there are innumerable Brahmās rising and disappearing like bubbles in the Atlantic. Brahmā and his creation are all part of the material universe, and therefore they are in constant flux. (from purport Bg 8.17)
The above calculations Srila Prabhupada uses and I quote; “seems fantastic and interminable, but from the viewpoint of eternity it is as brief as a lightning flash. In the causal ocean there are innumerable Brahmās rising and disappearing like bubbles in the Atlantic.” Wow!
The Hare Krishna Movement 