Pradyumna: (leads chanting, etc.)
- rūpaṁ sa jagṛhe mātsyaṁ
- cākṣuṣodadhi-samplave
- nāvy āropya mahī-mayyām
- apād vaivasvataṁ manum
- (SB 1.3.15)
Translation: "When there was a complete inundation after the period of the Cākṣuṣa Manu and the whole world was deep within water, the Lord accepted the form of a fish and protected Vaivasvata Manu, keeping him up on a boat."
Prabhupāda: So here is history also. This Vedic history is not that for one thousand years or two thousand years. No, not like that. One period. One millennium, Brahmā's one day, it is millions and millions of years. So just like there is night after day, day after night, similarly, the Brahmā's day, Brahmā's night, that is calculated. And one Brahmā's day. You know, that is described in the Bhagavad-gītā. Sahasra-yuga-paryantam ahar yad brahmaṇo viduḥ (BG 8.17). So Brahmā's one day means one thousand times of the yugas. The yugas means the Satya-yuga, Kali-yuga, and..., Tretā-yuga, Dvāpara-yuga, and Kali-yuga. So Satya-yuga's duration is about 1800,000's of years. The next, Tretā-yuga, duration about 1200,000's of years. And then Dvāpara-yuga, 800,000's of years, solar years.
We are calculating the years, the time also relative. That is the latest theory of the scientists, law of relativity. My hundred years and Brahmā's hundred years and an ant's hundred years, a germ's hundred years, they are not the same. Similarly time calculation, if you go in the upper planetary system, that time calculation is different. Just like in modern age, the sputnik age, they are flying sputnik. The first sputnik flight, they circumambulated this earth three times in one twenty-five hour and minutes. And they saw that there is night and day. Here in this planet our night and day experience is twenty-four hours. But as soon as you leave this planet, you fly in a different speed, there is three times night and day in one hour and minutes. So similarly everyone lives hundred years, but that hundred years are all relative. An ant's hundred years and man's hundred years is not the same. Similarly, a man's hundred years and a demigod's hundred years not the same. In different planetary system the time is... Similarly, if you go still up and up, the time is relative.
So we are calculating our three thousand years, four thousand years in our system. That three thousand or four thousand years, as soon as you go little up, it become one hour, twenty-five minutes. So Brahmā's one day is different. But it is stated in the Bhagavad-gītā... You know, who are reading Bhagavad... Sahasra-yuga-paryantam ahar yad brahmaṇo viduḥ (BG 8.17). You try to understand Brahmā's one day equal to our one thousand times of the yugas. And the yugas, as I have already explained... The Satya-yuga, 1800,000's of years; Tretā-yuga, 1200,000's of years. In the Satya-yuga people used to live for 100,000's of years. Vālmīki Muni, he practiced yoga for 60,000's of years. So unless one has got 100,000's of years duration of life, how he could practice 60,000's of years? So we should understand, everything is relative. This is called relative world. Relativity, law of relativity.
So Brahmā's one day means 4300,000's of years of our calculation. Forty-three hundred thousands of years, little more. That is Brahmā's one day. And in that one day, 4300,000's of years, there are fourteen manus changing. So these are described here. The manu, Cākṣuṣa Manu, Vaivasvata Manu. There are fourteen manus. So the calculation is in one day of Brahmā, ah, in one month of Brahmā, there are about five thousand manus. So this calculation is taken in the duration of manu's life.