Sūta said: Those who know the ancient lore, say that thirty muhūrtas constitute a day and a night during which the sun traverses the space in between the two limits (i.e. the solstitial points). Just as the nave of the wheel of the porter remains there alone (i.e. without moving) so also Auttānapāda (i.e. Dhruva) rotates (without moving) as the leader of the luminaries along with the planets.