So bhrama-pramāda-karaṇāpaṭava. Karaṇāpaṭava means. . . Karaṇa means the senses through which we act. Just like we catch up through the hand. This is called karaṇa. So karaṇa, these are imperfect. I am catching with my hand, but if the hand is paralyzed. . . So long we are not paralyzed, our machine is going nicely, we can catch. Otherwise, we cannot catch. This is condition. We can catch under certain condition. So therefore our senses are imperfect. Karaṇa apaṭu. Apaṭu means imperfect. Bhrama-pramāda-karaṇāpaṭava, and another defect is vañcana, or cheating. I am so much defective; still, I want to impress others that I have got full knowledge. How you can have full knowledge if you are so defective? Just like a diseased man, he cannot say, "I am perfect in health." That is not possible. Similarly, if we are defective in so many ways, and if I want to become teacher or preacher to give you the truth, then how can I give? This is not possible. So we cannot hear from anyone who is defective. That is not pure knowledge; that is not perfect knowledge. If we hear from some defective, who theorize, "I think," "In my opinion," "Maybe," "Perhaps. . ." These are nonsense speaking. So almost everyone, the so-called scientists, philosophers, they simply theorize, "I think." Who are you, you are thinking like that? You are imperfect.
So we cannot accept the theories or the statement of some defective person. We should hear from the person who is not defective—perfect. Therefore our process of hearing or getting knowledge is from the perfect person. That is called Kṛṣṇa consciousness. We are hearing Bhagavad-gītā, we are getting knowledge from Bhagavad-gītā, because Bhagavān Himself speaking. Therefore here it is said. . . Although it is said by Kṛṣṇa. . . Everyone knows that Kṛṣṇa spoke Bhagavad-gītā, and Vyāsadeva recorded it and then put it into the Mahābhārata, this statement. But here Vyāsadeva purposely says—one may not misunderstand—that this knowledge is perfect. Therefore he says, bhagavān uvāca. Bhagavān uvāca means there is no defect. You can accept it as it is and you get the full knowledge. This is the meaning of bhagavān uvāca. Many times he has said.
So bhagavān uvāca, and He is speaking about Himself, Bhagavān Kṛṣṇa, coming here. Yadā yadā hi dharmasya glānir bhavati bhārata, tadātmānaṁ sṛjāmy aham (BG 4.7).