by Srila A.C. Bhaktivedanta Swami Prabhupada
Dhruvaloka, or the polestar, is the abode of Lord Vishnu within this material world. Upon it there is an ocean of milk, and within that ocean there is an island known as Shvetadvipa. It is clearly indicated that this planet is situated above the seven planetary systems of the r.s.is , and because this planet is Vishnuloka, it is worshiped by all other planetary systems. Although the polestar existed before its occupation by Dhruva Maharaja, it had no predominating deity. Dhruvaloka, our polestar, is the center for all other stars and solar systems, for all of them circle around Dhruvaloka just as a bull crushes grains by walking around and around a central pole. Dhruva wanted the best of all planets, and although it was a childish prayer, the Lord satisfied his demand. A small child may demand something from his father which his father has never given to anyone else, yet out of affection the father offers it to the child; similarly, this unique planet, Dhruvaloka, was offered to Maharaja Dhruva.