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.