Dakṣa’s Daughters, Cosmic Lineages, and the Population of the Three Worlds
विवस्वत: श्राद्धदेवं संज्ञासूयत वै मनुम् । मिथुनं च महाभागा यमं देवं यमीं तथा । सैव भूत्वाथ वडवा नासत्यौ सुषुवे भुवि ॥ ४० ॥
vivasvataḥ śrāddhadevaṁ saṁjñāsūyata vai manum mithunaṁ ca mahā-bhāgā yamaṁ devaṁ yamīṁ tathā saiva bhūtvātha vaḍavā nāsatyau suṣuve bhuvi
Saṁjñā, the wife of Vivasvān, the sun-god, gave birth to the Manu named Śrāddhadeva, and the same fortunate wife also gave birth to the twins Yamarāja and the river Yamunā. Then Yamī, while wandering on the earth in the form of a mare, gave birth to the Aśvinī-kumāras.
Śrāddhadeva Manu (Vaivasvata Manu) is the son of Vivasvān and Saṁjñā; he is the Manu who presides over the present manvantara and represents the lawful order of human society.
This verse states that Saṁjñā bore twin children—Yama (the deity who administers death and justice) and Yamī—along with Vaivasvata Manu.
It highlights that the universe is guided by divinely appointed order—Manu for social law and Yama for moral accountability—encouraging one to live responsibly and in harmony with dharma.