The remaining three fourths is situated in the spiritual sky. In that sky innumerable planets float, and these are called Vaikuṇṭhalokas. In every Vaikuṇṭhaloka, Nārāyaṇa presides with His four expansions: Saṅkarṣaṇa, Pradyumna, Aniruddha and Vāsudeva. This Saṅkarṣaṇa, states Kṛṣṇadāsa Kavirāja in the eighth verse of the Caitanya-caritāmṛta, is Lord Nityānanda.
As stated before, it is in the form of Mahā-Viṣṇu that the Lord manifests the material universes. Just as a husband and wife combine to beget offspring, Mahā-Viṣṇu combines with His wife māyā, or material nature. This is confirmed in the Bhagavad-gītā (14.4), where Kṛṣṇa states: