Prabhupāda: So . . . ninety-six miles per second. These are mentioned in the Vedic literature, that if you go by this speed, air, some ninety-six thousand miles per second . . . so just imagine what is the speed of air. So panthās tu koṭi-śata-vatsara-sampragamyo vāyor athāpi (Bs. 5.34), on the plane which is running on the speed of air. That speed, and for millions of years.
Then again it is suggested not only on the speed of air, but also on the speed of mind. The mind you can, everyone, we know, what is the speed of mind. Even one ten-thousandth part of a second, you can go millions of miles. The speed of mind. It is so speedy. You are sitting here, and suppose you have seen something which is millions of miles here . . . miles away, you can immediately, your mind can go immediately. So these two examples are given. Just see how much scientific they were. These rascals says that there was no, I mean, advanced mind or advanced scientist. Then wherefrom these words are coming—the speed of air, the speed of mind—unless they had some experiment, some knowledge? Why . . . how these books are written?
So panthās tu koṭi-śata-vatsara-sampragamyo vāyor athāpi manasaḥ (Bs. 5.34). And how the speed, speedy planes are manufactured? Muni-puṅgavānām: by the greatest scientists and greatest thoughtful men. By manufactured by them. So is that perfection? No. So 'pyasti yat prapada-sīmny avicintya-tattve. Still you shall remain in inconceivable understanding what is this creation. Still, if you are so advanced that you can run on on this speed and if you are greatest scientist and thoughtful philosopher, still you'll remain in the same condition, unknown. Still.
So how we can study Kṛṣṇa? And Kṛṣṇa has created all these things. So if you cannot understand Kṛṣṇa's created things, how you can understand Kṛṣṇa? This is not possible at all. It is not possible. Therefore this Vṛndāvana status of mind for the devotees is the perfection. They have no business to understand Kṛṣṇa. They want to love Kṛṣṇa, without condition. "Because Kṛṣṇa is God, therefore I love," their mentality is not like that. Kṛṣṇa is not displaying in Vṛndāvana as God. He is playing there as ordinary cowherds boy. But at times, He's proving that He is the Supreme Personality of Godhead. But they do not care to know it.
So outside Vṛndāvana . . . just like Kuntīdevī. Kuntīdevī is not inhabitant of Vṛndāvana. She is inhabitant of Hastināpura, outside Vṛndāvana. The outside devotees, the devotees who are outside Vṛndāvana, they are studying the inhabitants of the Vṛndāvana, how great they are. But the inhabitants of Vṛndāvana, they don't care to know how great is Kṛṣṇa. That is the difference.
So our business is simply to love Kṛṣṇa. The more you love Kṛṣṇa, the more you become perfect. It is not that it is necessary to understand Kṛṣṇa, how He has created. The things are mentioned there. Kṛṣṇa is explaining Himself in the Bhagavad-gītā—so much. Don't bother very much to know Kṛṣṇa. That is not possible. Simply increase your unalloyed love for Kṛṣṇa. That is perfection of life.