Here is a correct description of the Supreme Lord, given by the Lord Himself. The words sarvasya pra-bhavaḥ indicate that Kṛṣṇa is the creator of everyone, including Brahmā, Viṣṇu and Śiva. And because these three principal deities of the material world are created by the Lord, the Lord is the creator of all that exists in the material and spiritual worlds. In the Atharva Veda (Gopāla-tāpanī Upaniṣad 1.24) it is similarly said, "He who existed before the creation of Brahmā and who enlightened Brahmā with Vedic knowledge is Lord Śrī Kṛṣṇa." Similarly, the Nārāyaṇa Upaniṣad (1) states, "Then the Supreme Person, Nārāyaṇa, desired to create all living beings. Thus from Nārāyaṇa, Brahmā was born. Nārāyaṇa created all the Prajāpatis. Nārāyaṇa created Indra. Nārāyaṇa created the eight Vasus. Nārāyaṇa created the eleven Rudras. Nārāyaṇa created the twelve Ādityas." Since Nārāyaṇa is a plenary manifestation of Lord Kṛṣṇa, Nārāyaṇa and Kṛṣṇa are one and the same. The Nārāyaṇa Upaniṣad (4) also states, "Devakī's son [Kṛṣṇa] is the Supreme Lord." The identity of Nārāyaṇa with the supreme cause has also been accepted and confirmed by Śrīpāda Śaṅkarācārya, even though Śaṅkara does not belong to the Vaiṣṇava, or personalist, cult. The Atharva Veda (Mahā Upaniṣad 1) also states, "Only Nārāyaṇa existed in the beginning, when neither Brahmā, nor Śiva, nor fire, nor water, nor stars, nor sun, nor moon existed. The Lord does not remain alone but creates as He desires." Kṛṣṇa Himself states in the Mokṣa-dharma, "I created the Prajāpatis and the Rudras. They do not have complete knowledge of Me because they are covered by My illusory energy." It is also stated in the Varāha Purāṇa: "Nārāyaṇa is the Supreme Personality of Godhead, and from Him the four-headed Brahmā was manifested, as well as Rudra, who later became omniscient."
Thus all Vedic literature confirms that Nārāyaṇa, or Kṛṣṇa, is the cause of all causes. In the Brahma-saṁhitā (5.1) also it is said that the Supreme Lord is Śrī Kṛṣṇa, Govinda, the delighter of every living being and the primeval cause of all causes. The really learned persons know this from evidence given by the great sages and the Vedas, and thus they decide to worship Lord Kṛṣṇa as all in all. Such persons are called budha, or really learned, because they worship only Kṛṣṇa.
The conviction that Kṛṣṇa is all in all is established when one hears the transcendental message from the undisturbed ācārya with faith and love. One who has no faith in or love for Lord Kṛṣṇa cannot be convinced of this simple truth. Those who are faithless are described in the Bhagavad-gītā (9.11) as mūḍhas-fools or asses. It is said that the mūḍhas deride the Personality of Godhead because they do not have complete knowledge from the undisturbed ācārya. One who is disturbed by the whirlpool of material energy is not qualified to become an ācārya.
Before hearing the Bhagavad-gītā, Arjuna was disturbed by the material whirlpool, by his affection for his family, society and community. Thus Arjuna wanted to become a philanthropic, nonviolent man of the world. But when he became budha by hearing the Vedic knowledge of the Bhagavad-gītā from the Supreme Person, he changed his decision and became a worshiper of Lord Śrī Kṛṣṇa, who had Himself arranged the Battle of Kurukṣetra. Arjuna worshiped the Lord by fighting with his so-called relatives, and in this way he became a pure devotee of the Lord. Such accomplishments are possible only when one worships the real Kṛṣṇa and not some fabricated "Kṛṣṇa" invented by foolish men who are without knowledge of the intricacies of the science of Kṛṣṇa described in the Bhagavad-gītā and Śrīmad-Bhāgavatam.
According to the Vedānta-sūtra, sambhūta is the source of birth and sustenance, as well as the reservoir that remains after annihilation (janmādy asya yataḥ (SB 1.1.1). The Śrīmad-Bhāgavatam, the natural commentary on the Vedānta-sūtra by the same author, maintains that the source of all emanations is not like a dead stone but is abhijña, or fully conscious. The primeval Lord, Śrī Kṛṣṇa, also says in the Bhagavad-gītā (BG 7.26) that He is fully conscious of past, present and future and that no one, including demigods such as Śiva and Brahmā, knows Him fully. Certainly half-educated "spiritual leaders" who are disturbed by the tides of material existence cannot know Him fully. They try to make some compromise by making the mass of humanity the object of worship, but they do not know that such worship is only a myth because the masses are imperfect. The attempt by these so-called spiritual leaders is something like pouring water on the leaves of a tree instead of the root. The natural process is to pour water on the root, but such disturbed leaders are more attracted to the leaves than the root. Despite their perpetually watering the leaves, however, everything dries up for want of nourishment.