Text 49]
The Activities of the Pracetās
1551
TRANSLATION
His previous body had been destroyed, but he, the same Dakṣa, inspired by the supreme will, created all the desired living entities in the Cākṣuṣa manvantara.
PURPORT
As stated in  Bhagavad-gītā :
sahasra-yuga-paryantam ahar yad brahmaṇo viduḥ rātriṁ yuga-sahasrāntāṁ te 'ho-rātra-vido janāḥ
“By human calculation, a thousand ages taken together is the duration of Brahmā’s one day. And such also is the duration of his night.” (Bg. 8.17)
Brahmā’s one day consists of one thousand cycles of the four  yugas —Satya, Tretā, Dvāpara and Kali. In that one day there are fourteen  manvantaras , and out of these  manvantaras  this Cākṣuṣa  manvantara  is the sixth. The various Manus existing in one day of Lord Brahmā are as follows: (1) Svāyambhuva (2) Svārociṣa (3) Uttama (4) Tāmasa (5) Raivata (6) Cākṣuṣa (7) Vaivasvata (8) Sāvarṇi (9) Dakṣa-sāvarṇi (10) Brahma-sāvarṇi (11) Dharma-sāvarṇi (12) Rudra-sāvarṇi (13) Deva-sāvarṇi and (14) Indra-sāvarṇi.
Thus there are fourteen Manus in one day of Brahmā. In a year there are 5,040 Manus. Brahmā has to live for one hundred years; consequently the total of Manus appearing and disappearing during the life of one Brahmā is 504,000. This is the calculation for one universe, and there are innumerable universes. All these Manus come and go simply by the breathing process of Mahā-Viṣṇu. As stated in the  Brahma-saṁhitā :
yasyaika-niśvasita-kālam athāvalambya jīvanti loma-vilajā jagad-aṇḍa-nāthāḥ viṣṇur mahān sa iha yasya kalā-viśeṣo govindam ādi-puruṣaṁ tam ahaṁ bhajāmi
The word  jagad-aṇḍa-nātha  means Lord Brahmā. There are innumerable  jagad-aṇḍa-nātha  Brahmās, and thus we can calculate the many Manus. The present age is under the control of Vaivasvata Manu. Each Manu lives 4,320,000 years multiplied by 71. The present Manu has already lived for 4,320,000 years multiplied by 28. All these long lifespans are ultimately ended by the laws of material nature. The controversy of Dakṣa-yajña took