There are so many prescribed mantras for liberation. Oṁkāra-sarva-vedeṣu. Every Vedic mantra begins with oṁkāra, and He is Kṛṣṇa. Vedic mantra . . . we chant Vedic mantra. There are many, many Vedic mantras in Upaniṣad and tantras, saṁhitā. So the begins with the combination of alphabets a, u, ma—oṁ. Oṁ tad viṣṇuṁ paramaṁ padaṁ sadā paśyanti sūrayaḥ (Ṛg Veda). Everything. Oṁ namo bhagavate vāsudevāya. Every Vedic mantra begins with the oṁkāra. Some of them are very much fond of chanting oṁkāra instead of Hare Kṛṣṇa. So there is no objection. Kṛṣṇa says, praṇavaḥ sarva-vedeṣu (BG 7.8). Praṇava means oṁkāra.
So actually only Kṛṣṇa is there, Para-brahman. He is only. Sarvaṁ khalv idaṁ brahma. Expansion in different varieties of multimanifestation. But if we analyze all these things, ultimately we come to the point that Kṛṣṇa is everything. That requires intelligence, how to analyze. Therefore here it is said this manifestation, this material manifestation, is guṇa guṇino mahad-ādayo, manaḥ, mind, intelligence, the five gross elements, three subtle elements, all, and manufactured, these demigods, animals, men, martyāḥ, 8,400,000 species. So all these varieties, actually it is simply . . . they are simply manifestation of Kṛṣṇa's different manifestation of energy, nothing else. The real center point is Kṛṣṇa. This can be understood by advanced students, bahūnāṁ janmanām ante (BG 7.19), after studying, studying, studying, not only in one life but for many, many lives. Bahūnāṁ janmanām, jñānavān. If he actually becomes wise, jñānavān, then he understands that only Kṛṣṇa is everything. Vāsudevaḥ sarvam iti sa mahātmā sudurlabhaḥ (BG 7.19). That is real understanding.
So as soon as one understands vāsudevaḥ sarvam iti, then Vasudeva is there, and I am there. So what is my relationship with Vāsudeva? He is the greatest, greater than the greatest, and I am the smaller than the . . . although the quality is the same. I am also cit, and Kṛṣṇa is also cit, sat-cit-ānanda, and I am also sat-cit-ānanda in small part. And because I am a very small particle, I forget my real nature. I identify with this material mahad-ādayaḥ. This is fallen down. This is fallen—a spark. Spark is fire, and the big fire is fire, but sometimes it is thrown: "Phat! Phat!" It sometimes falls down. So that small particle falls down. The big fire never falls down. Therefore Kṛṣṇa's another name is Acyuta. Acyuta means He never falls down. We, a small particle of the acyuta, although by nature we are acyuta, but due to our weakness we are prone to fall down in this material world. That is our position. But again we can be reinstated in our original position by cultivating Kṛṣṇa consciousness. This is the position. Ādy-antavanta urugāya.
So in this material world there is ādi, ādy-anta, beginning and ending. But Kṛṣṇa has no beginning or end. The material . . . Therefore Kṛṣṇa is not material. Urugāya. Kṛṣṇa is urugāya. Uru means He is exalted with nice, many, many ślokas, gāya. Gāya means songs, poetry. Uru. We cannot imagine. Uru-gāya. Just like in the Brahma-saṁhitā: yasyaika-niśvasita-kālam athāvalambya jīvanti loma-vilajā jagad-aṇḍa-nāthāḥ (BS 5.48). Loma-vilajā jagad-aṇḍa-nāthāḥ. So this jagad-aṇḍa-nāthāḥ, mean BrahmC . . . Jagad-aṇḍa. Āṇḍa means egglike, egg-shaped, this brahmāṇḍa or this universe. And there are jagad-aṇḍa-nāthāḥ, plural number. So in each universe there is a chief living entity. He is called Brahmā because Brahmā is created first in . . . (indistinct) . . .. So that Brahmā, there are millions of universes, and there are millions of Brahmās and millions of Śiva and other demigods. Each Brahmā is full with all different types of living entities. But such Brahmā, where they are being born? Not only Brahmā, the brahmāṇḍa. Yasyaika-niśvasita-kālam athāvalambya jīvanti. Niśvasita-kāla. Just like we exhale and inhale. A minute . . . Or not minute even: a second. Within a second we exhale and inhale so many times. So similarly, Viṣṇu, Mahā-Viṣṇu, He is also exhaling and inhaling. But during that period so many brahmāṇḍas are coming and so many brahmāṇḍas disappear. Ādy-antavanta, beginning and . . . But this Mahā-Viṣṇu, who is this Mahā-Viṣṇu? Yasyaika-niśvasita-kālam athāvalambya jīvanti loma-vilaja jagad-aṇḍa-nāthāḥ, viṣṇur mahān sa iha yasya kalā-viśeṣo (BS 5.48). This Mahā-Viṣṇu, from whose breathing so many brahmandas and Brahmās are coming and going, that Mahā-Viṣṇu's one second just imagine, how many million millions of years. So this is the description of Mahā-Viṣṇu. Then Mahā-Viṣṇu is also partial incarnation of Saṅkarṣaṇa; the Saṅkarṣaṇa is also emanation from Nārāyaṇa; and Nārāyaṇa is also a emanation from the first catur-vyūha Saṅkarṣaṇa. This Saṅkarṣaṇa is expansion of Baladeva, and Baladeva is the immediate expansion of Kṛṣṇa. Therefore come to the Kṛṣṇa. So ādy-antavanta.
So beginning is Kṛṣṇa. Aham ādir hi bhūtānām. He says, Bhagavad-gītā. Mattaḥ sarvaṁ pravartate (BG 10.8). This is the explanation Kṛṣṇa is giving. Mattaḥ parataraṁ nānyat kiñcid asti dhanañjaya (BG 7.7). We should understand this. So beginning is the Kṛṣṇa, ādi. Īśvaraḥ paramaḥ kṛṣṇaḥ sac-cid-ānanda vigrahaḥ, anādir ādiḥ (BS 5.1). Anādi: He has no beginning. And everything has got beginning, and anta, but Kṛṣṇa has no beginning and anta. Ādy-anta. So in this way we have to understand Kṛṣṇa. And one who has such perfect understanding of Kṛṣṇa . . . And Kṛṣṇa says, aham ādir hi devānām (BG 10.2). Devānām means beginning from Brahmā, then Śiva, then so many other demigods, Indra, Candra, Varuṇa. Aham . . . Even Viṣṇu. The Viṣṇu, Kṣirodakaśāyī Viṣṇu, He is also partial expansion of Kṛṣṇa, and from Kṣirodakaśāyī Viṣṇu the Viṣṇu is all-pervading. Īśvaraḥ sarva-bhūtānāṁ hṛd-deśe 'rjuna tiṣṭhati (BG 18.61): the Supreme Personality of Godhead who is staying in everyone's core of heart, hṛd-deśe. It is . . . There is no hide and seek, hide and seek. It is clearly stated that "This Paramātmā, Viṣṇu, is staying, hṛd, hṛd-deśe, in the heart." Therefore heart is always palpitating. And the jīvātmā is also there and . . . (aside:) Stop children talking. Then when the jīvātmā leaves this body, that is called heart failure. That is heart failure. Heart is palpulating, but as soon as the jīvātmā goes, heart fails. And these materialist science, they cannot give any cause. They are giving, what is that, oxygen gas and every minute injecting to keep the palpitation of the heart, throbbing of the heart, continuous. But how they can do it? As soon as the living soul is depart from the heart there is no more palpitating. It is simply a lump of matter. That requires intelligence, that this matter is never the living soul.