Underneath, beyond the neither regions is water. Beyond water is the region of the great serpents. Beyond that is sky once more, and beyond the sky is water again.
रसातलान्ते सलिलं जलान्ते पन्नगाधिपाः। तदन्ते पुनराकाशमाकाशान्ते पुनर्जलम्॥