"May my fame of being punished by placing your feet on my head remain as long as the sun and moon endure." Because of the statement, "you will no longer have fear of sankes," this verse should be considered a mantra to ward of snake bits. There is another mantra in the rg veda: ya yuna hrade hi so vato yo narayana vahanah yadi kalika dantasya yadi kakalikad bhayam janma bhumi parikranto nirviso yati kalikah.

The person who while glorifying at the two sandhyas (should be sandhyayoḥ instead of sandhyoḥ) remembers just my command to leave given to you (what to speak of the pastimes in the water) becomes free of fear. The last two lines of verse 60 and this verse are a mantra to ward off snakes. There is another mantra in the Ṛg Veda: yamunā-hrade hi so jāto yo nārayāṇa-vāhanaḥ yadi kālika-dūtasya yadi kāḥ kālikād bhayam janma-bhūmi-parikrānto nirviṣo yāti kālikaḥ He who carries the Lord appeared in a lake in the Yamunā. There may be fear of Kālika (the snake—Kāliya) or his servant. But Kāliyā, left the birth place of the Lord and it became free of poison. Ṛg Khila 14.4

The person who while glorifying at the two sandhyas (should be sandhyayoḥ instead of sandhyoḥ) remembers (or remembers and glorifies) just my command to leave, which has been given to you (what to speak of the pastimes in the water), becomes free of fear. Or sandhya can refer to the period between summer and monsoon, when the snakes first come out of their hole and to the period between monsoon and winter, when they enter their holes. There is fear of snakes because they are angry from hunger or pain. Thus a person who hears this story will not have fear of pain or hunger.