We have to purify the position of our senses in order to perceive. With our present senses, materialistic senses, we cannot understand Kṛṣṇa, or God. It is not possible. Ataḥ śrī-kṛṣṇa-nāmādi na bhaved grāhyam indriyaiḥ (CC Madhya 17.136). He is not . . . Kṛṣṇa is not perceivable by our material senses. "Then why you are troubling so much, because you have nothing but material senses?" No. It can be purified. How it can be purified? By love of God.
When you evolve your dormant love of Godhead, your vision becomes different. That is called premāñjana-cchurita-bhakti-vilocanena santaḥ sadaiva hṛdayeṣu vilokayanti (Bs. 5.38). They are also yogīs. Yoginām api sarveṣāṁ (BG 6.47). The same process. Either you go through the haṭha-yoga process or jñāna-yoga process, the ultimate goal is Kṛṣṇa, ultimate goal is Viṣṇu. And if we miss this point, then . . . the Bhāgavata says that you do not know what is your ultimate goal of life. Bhāgavata says:
- na te viduḥ svārtha-gatiṁ hi viṣṇuṁ
- durāśayā ye bahir-artha-māninaḥ
- andhā yathāndhair upanīyamānās
- te 'pīśa-tantryām uru-dāmni baddhāḥ
- (SB 7.5.31)
So the verdict of all śāstras, Vedic literature, is aiming how to understand Kṛṣṇa. That is the version of all Vedas. So Kṛṣṇa here in the Seventh Chapter, recommending personally. Kṛṣṇa is teaching the process how you can understand Kṛṣṇa. You haven't got to learn some art and method how to understand Kṛṣṇa from anyone else. You can understand directly from Kṛṣṇa. That is the process.
The Bhāgavata says, athāpi te deva padāmbuja-dvaya-prasāda-leśānugṛhīta eva hi (SB 10.14.29). Without Kṛṣṇa's mercy, nobody can understand Kṛṣṇa. That is the process. The Vedas also says, nāyam ātmā pravacanena labhyo na medhayā na bahunā śrutena (Kaṭha Upaniṣad 1.2.23): "One cannot understand the Supreme Soul simply by lecturing." Pravacanena. If one is very expert in lecturing, it does not mean that he has realized Kṛṣṇa. Na medhayā.
Or if one has very good brain—a great scientist, great philosopher—he can understand Kṛṣṇa? Veda says: "No." Na medhayā na bahunā śrutena: "If one is very learned in Vedic literature, he also cannot understand Kṛṣṇa." But one who is favored by Kṛṣṇa or when Kṛṣṇa reveals Himself to somebody, being satisfied with his devotional service, he can understand Kṛṣṇa; nobody else.