The Vedas inform us that beyond this cosmic manifestation there are extensive planets in the spiritual sky. This material manifestation is regarded as only a small portion of the total creation. The material manifestation includes not only this universe but innumerable others as well, but all the material universes combined constitute only one fourth of the total creation. 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:
- sarva-yoniṣu kaunteya mūrtayaḥ sambhavanti yāḥ
- tāsāṁ brahma mahad yonir ahaṁ bīja-pradaḥ pitā
"It should be understood that all species of life, O son of Kuntī, are made possible by birth in this material nature, and that I am the seed-giving father." Viṣṇu impregnates māyā, the material nature, simply by glancing at her.