The Vaiṣṇava schools therefore never try to merge into the Brahman effulgence in their pursuit of spiritual perfection. They accept Kṛṣṇa as the ultimate goal of self realization. Therefore Kṛṣṇa is called parambrahman (the supreme Brahman) or parameśvara (the supreme controller). Śrī Yāmunācārya has prayed as follows: "My dear Lord, I know that the gigantic universe and gigantic space and time within the universe are covered by the ten layers of the material elements, each layer ten times larger than the previous one. The three material modes of nature, the Garbhodakaśāyī Viṣṇu, the Kṣīrodakaśāyī Viṣṇu and the Mahā-Viṣṇu, and beyond them the spiritual sky and its spiritual planets, known as Vaikuṇṭhas, and the Brahman effulgence in that spiritual sky—all of these taken together are nothing but a small exhibition of Your potency."
55. Possessing All Mystic Perfections
There are many standards of perfection. The highest material perfections, obtained by perfect yogīs, are listed as eight: to become the smallest of the small, to become the greatest of the great, etc. All of these material perfections, as well as all spiritual perfections, can be found fully in Kṛṣṇa's personality.
56. Kṛṣṇa's Inconceivable Potencies
Kṛṣṇa is present everywhere, not only within the universe, not only within the heart of all living entities, but also within every atom. In the prayers of Queen Kuntī we find mention of this inconceivable potency of Kṛṣṇa. While Kṛṣṇa was talking with Kuntī, He simultaneously entered the womb of Uttarā, who was in danger due to the atomic weapon of Aśvatthāmā. Kṛṣṇa can illusion even Lord Brahmā and Lord Śiva, and He can protect all surrendered devotees from the reaction of sinful activities. These are some of the examples of His inconceivable potencies.
Śrīla Rūpa Gosvāmī therefore offers his obeisances unto Kṛṣṇa by saying, "Kṛṣṇa, who is present as a human being, has as His mere shadow the whole material nature. He has expanded Himself into so many cows, calves and cowherd boys, and He has again manifested Himself in all of them as the four-handed Nārāyaṇa. He has taught millions of Brahmās self realization, and thus He is worshipable not only by the heads of all universes, but by everyone else also. Therefore let me always accept Him as the Supreme Personality of Godhead."