Īśa-tantra, by the laws of nature, or laws of God . . . laws of nature means laws of God. They accept, "By nature it is . . ." But they do not know who is behind this nature. That is intelligence. Nature is dead matter. It cannot . . . just like this microphone, this is matter, material. What is that? Some iron, some other thing, some wood, some . . . but this iron-wood combination cannot take place and become a microphone. No. There is a life behind this iron and wood, and he has manufactured; therefore it is working. But these rascals, they are thinking that combination of this iron and wood and something else, it has become microphone. No. It is a machine, but machine is manipulated and manufactured by life, not that automatically the iron-wood becomes a machine. No. So these rascals, they cannot understand that the nature is working—that's all right—but how it is working? What is the background? That they do not know. That answer is in the Bhagavad-gītā. Mayādhyakṣeṇa prakṛtiḥ sūyate sa-carācaram (BG 9.10): "Under My superintendence it is working," Kṛṣṇa says. That's a fact. You might have manufactured a very big machine. That is all manufactured by some life. Not that the iron and wood has come together, a skyscraper building—the bricks have come all together automatically. They say, "By chance." What is this nonsense? By chance these bricks have come and piled and become rooms? Just see. These things are going on, rascals. Therefore andhā yathāndhair upanīyamānāḥ (SB 7.5.31). (aside) Let him sleep somewhere.
So this is going on. Don't be misled. Īśa-tantrya, by the laws of nature, we are bound up tight, hands and legs. We are not independent. You cannot do anything independently. You are completely under the clutches of material nature. And behind the material nature is Kṛṣṇa. Therefore our business is to surrender to Kṛṣṇa and take knowledge from Him, and then you become perfect. That is explained here, sakṛn manaḥ kṛṣṇa-padāravindayor niveśitaṁ tad-guṇa-rāgi yair iha. Who will take instruction from Kṛṣṇa? Tad-guṇa-rāgi, when you understand that "Kṛṣṇa is the Supreme. We have to take instruction from Him." Nobody is perfect except Kṛṣṇa. Or one who follows Kṛṣṇa, he is perfect. Kṛṣṇa is perfect; one who follows Kṛṣṇa, he is perfect. Just like a child. He does not know what it is, but if he takes instruction from his father or teacher that "This is microphone," so when he says, "This is microphone," this is perfect. He may be child, but because he has learned from his father or teacher, "This is microphone," and he says, "This is microphone. This is this," then it is perfect. So the instruction of Kṛṣṇa is perfect, and the teacher or guru who speaks the same thing as Kṛṣṇa says, that is perfect. And if he manufacture his own ideas and becomes more than Kṛṣṇa, then he's a rascal number one. There is no benefit.