Sureṇu, renowned as the daughter of Tvaṣṭṛ and younger sister to another, became the wife of Savitṛ. In time, she became known as Saṃjñā. Through her steadfast austerity, Saṃjñā gave birth to Manu, the eldest son of Vivasvat, and later bore the twins Yama and Yamunā. In a remarkable turn, this goddess assumed the form of a mare and journeyed to the land of the Kurus. Savitṛ himself took the form of a horse, and from his nostrils, the twins were remembered as being born. Saṃjñā, illustrious and radiant, gave birth in the sky to the divine twins, the Aśvins—Nāsatya and Dasra—both sons of Mārttaṇḍa. The sages, curious, asked: “Why is Vivasvān called Mārttaṇḍa by the wise? For what reason did Saṃjñā, in the form of a mare, give birth through the nostrils? We wish to know this truth; please explain it to us.” Sūta replied: When the egg, long conceived, was split apart by Tvaṣṭṛ, Kaśyapa saw the embryo destroyed and became distressed with fear. When the egg was divided in two, Kaśyapa said to Tvaṣṭṛ, “Surely, this is not the egg; you are Mārttaṇḍa, O sinless one.” Out of affection, the father declared, “He is not dead in the egg.” Thus, hearing these words, the name Mārttaṇḍa was given. Because the father said, “You are Mārttaṇḍa,” when the egg was split in two, Vivasvān has been called Mārttaṇḍa by those who know the ancient lore. Now let me recount the offspring of Mārttaṇḍa, Vivasvān. Three children were born of Saṃjñā, the wife of Savitṛ: Manu, the younger Sāvarṇi, and the Aśvins. Śanaiścara is also counted among the sons of Mārttaṇḍa, making seven in all. Vivasvān, famed and radiant, was born from Kaśyapa and Dākṣāyaṇī. His wife was the daughter of Tvaṣṭṛ, the great goddess known as Sureṇu and later as Saṃjñā. Though she was the wife of the blessed Mārttaṇḍa, possessed of immense brilliance, beauty, and youth, she was not pleased with her husband’s form. The form of Āditya, Mārttaṇḍa, due to his overwhelming radiance, was restrained among the lineages and did not appear pleasing. Out of affection, the father had said, “He is not dead in the egg,” and Kaśyapa, in ignorance and love, called him Mārttaṇḍa. The radiance of Vivasvān was always excessive, so much so that the son of Kaśyapa caused the three worlds to burn. Ravi, the Sun, begot three children on Saṃjñā: two sons of great might, and a daughter, Kālindī. Manu, the eldest son of Vivasvat, became lord of progeny and god of the Śrāddha rite. Then Yama and Yamī, the twins, were born. Seeing the tranquil form of his wife, Vivasvat lost consciousness, unable to endure her presence. Thus, Savarṇā was created anew. This woman, composed of earth, arose from Saṃjñā’s shadow. With joined palms and devotion, she addressed Saṃjñā, “Tell me, what should I do?” Saṃjñā replied, “With your blessing, I will go to my father’s house. You must remain here in my place, without fear, in this house; these two sons and my daughter of excellent complexion are entrusted to you. This must never be revealed to my husband.” The earth-born woman answered, “O goddess, from grasping the sky, one never attains the goal; I will follow your instructions. Go, goddess, to your own abode.” Having agreed, Saṃjñā, thus addressed, went to Tvaṣṭṛ, the ascetic, feeling ashamed. Her father, upon seeing her, angrily said, “Go to your husband; do not despise the radiant one.” Thus instructed, she dwelt in her father’s house for a thousand years. Despite repeated commands to return to her husband, she became a mare, concealing her form, and went to the northern Kurus, where she grazed on grass. From the second Saṃjñā, the Sun begot two sons endowed with his radiance. Both were equal in likeness to the elder Manu; one was Śrutaśravas, wise in righteousness, and the other was Śrutakarman. Śrutaśravas is Manu, who will be known as Sāvarṇi in the future; Śrutakarman is to be known as Śanaiścara, the planet Saturn. He indeed became Manu, known as Sāvarṇi, and Saṃjñā, the earth-born, at that time showed greater affection for her own son. She loved him more than her earlier children; Manu accepted this, but Yama did not. Often scolded by his stepmother, Yama became greatly distressed. Out of anger, childishness, and the force of destiny, Yama threatened Saṃjñā with his foot. In wrath, Savarṇā, his mother, cursed Yama: “Because you threatened your father’s illustrious wife with your foot, therefore this foot of yours will surely fall off—there is no doubt.” Yama, troubled by the curse, together with righteous Manu, reported everything to their father. Greatly disturbed by fear of the curse and overcome by words of reason, Yama pleaded, “Whether from childhood or from delusion, I am worthy of being saved by you. O lord of the world, best among those who suffer, I have been cursed by my mother; may your favor indeed protect us from this great danger.” Vivasvat, thus addressed, spoke to Yama: “Without doubt, my son, there is a great cause behind this.