This material creation, how it is being done? It is being done that the Supreme Lord in His form of Mahā-Viṣṇu, He's lying on the Causal Ocean and in a sleeping mood, and with the breathing of His nostrils, so many universes are being born as seed. And when He's taking the breathing, inhaling, the whole thing is going into Him. So such is the position of God, that by His breathings, all the universes are coming, and by His breathing... So the existence of the universe means within His breathing period, within the breathing period of the Mahā-Viṣṇu. So that Mahā-Viṣṇu is described, yasyaika-niśvasita-kālam athāvalambya jīvanti loma-vilajā jagad-aṇḍa-nāthāḥ viṣṇur mahān sa iha yasya kalā-viśeṣaḥ (Bs. 5.48). That Mahā-Viṣṇu is also plenary portion of Kṛṣṇa, Govinda. That Mahā-Viṣṇu is also not the original. The original Personality of Godhead is Kṛṣṇa.
So this is a great science, what Kṛṣṇa is—Kṛṣṇa science. It is simply a synopsis; Bhagavad-gītā is only a synopsis of the science of God, and it is more explicitly given in the Śrīmad-Bhāgavata. But after all, it is a great science. If we study it very seriously, then we can understand... We should not take so cheaply that "Here is a God, here is a God, here is a God." No, no. God is not so cheap. God is one, and He is great. "God is great," as in your English language it is said, and nobody can be greater than Him or equal to Him. That is the position of God. Now here, Arjuna, he accepts Kṛṣṇa and he says that "You are Paraṁ Brahman." Paraṁ brahma paraṁ dhāma (BG 10.12). Dhāma means in which everything rests. We are resting, everything is resting. Just like... This is scientific and practical, you know, that the innumerable planets that the, that you can see at night as, I mean to say, luminaries, stars in the sky, each and every one of them, more or less, they are all different kinds of planets. But do you know how they are floating in the space? They are floating on the sunshine, on the sun rays. They are floating. That you can see. Similarly, the sunshine is the imitation of the brahma-jyotir that is coming out of the body of the Supreme Lord. So everything is resting on the shine of the Supreme Lord. Therefore He is called paraṁ dhāma. Paraṁ dhāma means "everything resting on You." Paraṁ brahma paraṁ dhāma pavitram (BG 10.12). Pavitram. Pavitram means uncontaminated. Because we, although we are Brahman, now we are contaminated by this material body. But the Lord has no contaminated body of this material existence. We have already noted, īśvaraḥ paramaḥ kṛṣṇaḥ sac-cid-ānanda... Sac-cid-ānanda-vigrahaḥ (Bs. 5.1). Sac-cid-ānanda-vigrahaḥ means His body is full—full of bliss, full of knowledge, and it is eternal. That is completely distinct from this body. So when there is description of the Lord that He is formless, He is formless means He is not of this form. He has got a sac-cid-ānanda-vigrahaḥ (Bs. 5.1), a different element. Therefore He's called pavitra. And paramaṁ bhavān: "You are the Supreme Original." Puruṣaṁ śāśvataṁ divyam ādi-devam ajaṁ vibhum. So "You are Puruṣa." Puruṣa means enjoyer. "In the Vedic literature, about Yourself...," āhus tvām ṛṣayaḥ sarve, "all the great sages accept You, the Supreme Lord." Āhus tvām ṛṣayaḥ sarve devarṣir nāradaḥ. Devarṣir nārada. I have already spoken to you about Nārada. He has also accepted Him. That means authorities. He's quoting authorities. Not that "I am personally accepting you as such, but there are many authorities, many authorities." So we have to understand about the science of God from the extraordinary activities and confirmed by the authorities, accepted by the revealed scriptures. Then we have to accept. You see? Not blindly. So Arjuna is giving such evidences. Asito devalo vyāsaḥ svayaṁ caiva bravīṣi me: "You are accepted by such authorities like that, and I have the opportunity that I hear all this from You directly. I am fortunate enough that I am become Your..., I am related in friendship with You, and I am hearing."