The sky was made to be its yoke; and the clouds, known by the names of Samvartakas and Balahakas, were made its leathern strings. Then also Kalaprishta, Nahusha, Karkotaka and Dhananjaya, as also several other snakes became the chords for binding the manes of those horses. The cardinal points and the subsidiary directions constituted the reins of those horses yoked to that car.
द्यां युगं युगचर्माणि संवर्तकबलाहकान्। कालपृष्टोऽथ नहुषः कर्कोटकधनंजयौ॥ इतरे चाभवन् नागा हयानां बालबन्धनाः। दिशश्च प्रदिशश्चैव रश्मयो रथवाजिनाम्॥