Chāyā, ever devoted to her duties as a wife, lovingly served Vivasvat, the Sun, who is revered as the eye of the world. From their union came Yama, the son of Vivasvat, and Yamunā, the sacred river who purifies the worlds. These two, Yama and Yamunā, were entrusted by their mother into the protective embrace of Vivasvat, with the earnest request that he safeguard them. Chāyā was also told that she must remain ever devoted to the worship of the Sun, dwelling in his house and upholding her sacred responsibilities. With these agreements made, Sāvitrī—the true wife—departed at that time, leaving Chāyā in her stead. Immediately, Chāyā’s father restrained her, and in response, she assumed the form of a mare. Once, Vaivasvata, driven by hunger, begged her for food. When he was denied, he struck her with his foot, and Chāyā, wounded by this act, uttered a curse upon him: “You will be lame in your foot—there is no doubt.” Meanwhile, Vyāsa, having insulted the earth, witnessed the affliction of his son, and Vibhāvasu spoke out upon seeing his child crippled. When Savitṛ, the radiant lord of the worlds, questioned him, Vaivasvata explained, “For my morning meal, O master, I begged from my mother’s presence. My feet immediately fell, overcome by my mother’s curse. This strange account explains the reason for my mother’s curse.” It was then revealed that Chāyā was not the lovely-eyed daughter of Tvaṣṭṛ, the purifier of the world. She had returned to her father’s house, and forbade Vaivasvata from approaching her. Furthermore, Chāyā was instructed that nothing at all should be spoken to Savitṛ. Upon hearing these events, the blessed Tvaṣṭṛ, filled with anger, approached. Seeing him, Tvaṣṭṛ—the patriarch of the world—rose suddenly, bowed at his feet, circled him, and showed utmost respect. Tvaṣṭṛ then explained, “She has come to your house, dear one, following my path.” These words troubled Ravi, the Sun, who wondered, “What shall I do? Where shall I go? Where is my beloved?” Ravi’s radiance had been lost, broken, and seemed to have vanished, deprived of its former strength. Tvaṣṭṛ then assured him, “Now, let it please you completely; do as it should be done.” Hearing these words, the Sun watched as Tvaṣṭṛ fashioned the Sudarśana from a blade, and with just a touch of its edge, the tool was made for Vivasvat. Tvaṣṭṛ spoke sweet words in the Sun’s presence: “Let it be taken, O best of gods; let it quickly go to the meadow. Where the union of both occurs, liberation is assured without doubt.” Hearing this, Savitā, the all-heating Sun, journeyed to the place where the river Śiprā, rich in waters, joined with the Kṣātāsaṃgama. There, upon arrival, he beheld his beloved wife, who had taken the form of a mare. In that sacred place, by merely smelling with the nose, both sons were born. Chāyā gave birth to twins, O best of twice-born. When Saturn is in conjunction, all desires are fulfilled. His fortune, held in his hand, always arises on earth. By worshipping the lord of the immovable, all sins are destroyed. Among Chāyā’s sons are Piṅga, Babhru, Sthāvara, and Pippalāyana.