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Krṣṇa, the Supreme Personality of Godhead
and Śrī Gadādhara Paṇḍit. Next, let us offer our respectful obeisances to Svarūpa-Dāmodara, who acted as the private secretary to Lord Caitanya Mahāprabhu; and let us offer our respectful obeisances to Śrī Vāsudeva Datta and the constant attendant of Lord Caitanya, Śrī Govinda, and the constant friend of Lord Caitanya, Mukunda, and also to Murāri Gupta. And let us offer our respectful obeisances to the six Gosvāmīs of Vṛndāvana, Śrī Rūpa Gosvāmī, Śrī Sanātana Gosvāmī, Śrī Raghunātha Bhaṭṭa Gosvāmī, Śrī Gopāla Bhaṭṭa Gosvāmī, Śrī Jīva Gosvāmī and Śrī Raghunātha Dāsa Gosvāmī.
Krṣṇa Himself has explained in the  Bhagavad-gītā  that He is the Supreme Personality of Godhead. Whenever there are discrepancies in the regulative principles of man's religious life and a prominence of irreligious activities, He appears on this earthly planet. In other words, when Lord Śrī Krṣṇa appeared, there was a necessity of minimizing the load of sinful activities accumulated on this planet, or in this universe. For affairs of the material creation, Lord Mahā-Viṣṇu, the plenary portion of Krṣṇa, is in charge.
When the Lord descends, the incarnation emanates from Viṣṇu. Mahā-Viṣṇu is the original cause of material creation, and from Him Garbhodakaśāyi-Viṣṇu expands, and then Kṣīrodakaśāyi-Viṣṇu. Generally, all the incarnations appearing within this material universe are plenary expansions from Kṣīrodakaśāyi-Viṣṇu. Therefore, the business of minimizing the overload of sinful activities on this earth does not belong to the Supreme Personality of Godhead, Krṣṇa Himself. But when Krṣṇa appears, all the Viṣṇu expansions also join with Him. Krṣṇa's different expansions, namely Nārāyaṇa, the quadrupal expansion of Vāsudeva, Saṅkarṣaṇa, Pradyumna and Aniruddha, as well as the partial plenary expansion of Matsya or the incarnation of fish, and other  yuga-avatāras  (incarnations for the millennium), and the  manvantara-avatāras , the incarnations of Manus—all combine together and appear with the body of Krṣṇa, the Supreme Personality of Godhead. Krṣṇa is the complete whole, and all plenary expansions and incarnations always live with Him.
When Krṣṇa appeared, Lord Viṣṇu was also with Him. Krṣṇa actually appears to demonstrate His Vṛndāvana pastimes and to attract the fortunate conditioned souls and invite them back home, back to Godhead. The killing of the demons was simultaneous to His Vṛndāvana activities and was carried out only by the Viṣṇu portion of Krṣṇa.
In the  Bhagavad-gītā , Eighth Chapter, 20th verse, it is stated that there is another eternal nature, the spiritual sky, which is transcendental to this manifested and nonmanifested matter. The manifested world can be seen in the form of many stars and planetary systems, such as the sun, moon,