Beyond the limitation of this material world is the spiritual sky, paravyoma, which has many spiritual planets, the supreme of which is called Kṛṣṇaloka. Kṛṣṇaloka, the abode of Kṛṣṇa, has three divisions, which are known as Dvārakā, Mathurā and Gokula. In that abode the Personality of Godhead expands Himself into four plenary portions — Kṛṣṇa, Balarāma, Pradyumna (the transcendental Cupid) and Aniruddha. They are known as the original quadruple forms.