Lord Caitanya has explained about . . . out of six kinds of incarnations, He has explained to you the incarnation of puruṣāvatāra, three, then līlāvatāra, then guṇāvatāra. Three kinds of incarnations are already explained. Now the remainder three kinds of incarnations, manvantarāvatāra, yugāvatāra and śaktyāveśāvatāra, He is going . . . out of that three, first the manvantarāvatāra, Manu. So Lord Caitanya says that, "I shall now explain to you about the manvantavatāra." And He says, manvantarāvatāra ebe śuna, sanātana: "My dear Sanātana, just now I shall explain to you about the manvantarāvatāra. You hear it."
Asaṅkhya gaṇana tāṅra, śunaha kāraṇa: "And this manvantarāvatāra . . . so far other incarnations are concerned, we have somehow counted three or say ten, like that. But here, when we speak of manvantarāvatāra, oh, they are countless." Asaṅkhya. Asaṅkhya means countless. Nobody can count how many manvantarāvatāras are there. How it is so? He is explaining. Brahmāra eka-dine haya caudda manvantara (CC Madhya 20.320):
"In one day of Brahmā . . . in one day of Brahmā . . ." That you have calculated according to Bhagavad-gītā, sahasra-yuga-paryantam ahar yad brahmaṇo viduḥ (BG 8.17).
Brahmaṇo, or Brahmā, arhat. Arhat means one day, twelve hours. What is that twelve hours according to our calculation? Sahasra-yuga-paryantam. Sahasra, one thousand yugas. And what is the duration of yuga? Four million, three hundred thousands of years, one yuga. Such one thousand, that makes Brahmā's one day, twelve hours. Similarly night, twelve hours. Similarly one month. In this way he has got hundred years' duration of life.
Now, this one day, twelve hours, within this twelve hours, there are fourteen Manus. Twelve hours of Brahmā means Four, three, five zero . . . eight zero. What is that, four, three, eight zeroes? What is the calculation according to your arithmetic, four, three, eight zeroes? Huh?
Hayagrīva: 4,300,000,000.
Rūpānuga: Four billion three hundred and eight.
Prabhupāda: Four, three, eight zeroes.
Devotee: 4,300,000,000.
Rūpānuga: Yes. That's right.
Prabhupāda: Four billion . . .
Rūpānuga: . . . three hundred million.
Prabhupāda: 4,300,000,000. That's all right. Within that 4,300,000,000's divide into fourteen. That is the duration of one Manu. Four billion, three hundred millions divide into fourteen, that will make . . . that one part is the duration of a Manu. So anyway, fourteen Manus are taking place in one day of Brahmā.
- brahmāra eka-dine haya caudda manvantara
- ei caudda avatāra tāhāṅ karena īśvara
- (CC Madhya 20.320)
These are also . . . they are also incarnation of the Supreme Lord. Caudda eka dine, māse cāri-śata biśa (CC Madhya 20.321).
If in one day of Brahmā there are fourteen Manus, then in one month of Brahmā it comes to cāri-śata, 420. Thirty days a month. So 420 Manus in one month of Brahmā. Brahmāra vatsare pañca-sahasra calliśa (CC Madhya 20.321). Similarly, in one year of Brahmā there is 5,040 Manus in one year, and he lives for hundred years. So 5,040 Manus in one month, er, one year. Now hundred. So 5,040 plus two zero.
So it comes to pañca-lakṣa cāri-sahasra manvantarāvatāra (CC Madhya 20.322).
Pañca-lakṣa means fifty millions. Not fifty millions; ten millions a lakṣa. That means five millions . . . five millions and four thousands of Manus are there in one Brahmā's life. Five thousand and . . . er, five million and four hundred thousand of manvantarāvatāra, incarnation of Manu, in one brahmāṇḍa. And Lord Caitanya . . . ananta brahmāṇḍe aiche karaha (CC Madhya 20.323). And there are innumerable brahmāṇḍas, universes. Now you can calculate how many Manus are there. Therefore you cannot calculate. He says "innumerable."