Now, Kṛṣṇa advises that, "If you want to know that transcendental science, then you just try to approach somebody." Praṇipātena. Praṇipātena, paripraśnena and sevayā. What is praṇipāta? Praṇipāta means surrender. Surrender. You must select a person where you can surrender yourself, because nobody likes to surrender to anyone.
We have got . . . everyone, we are puffed up with our whatever knowledge we have got. Everyone is puffed up: "Oh, who can give me knowledge?" There is regular propaganda that "For spiritual realization there is no need of spiritual master." But so far Vedic literature is concerned, so far Bhagavad-gītā is concerned, so far Bhāgavata is concerned, so far the Upaniṣads and Vedic literatures are concerned, they do not say. They say that there is need of a spiritual master.
Take for example the Upaniṣads, the Vedic Upaniṣads. In the Vedic Upaniṣads it is said, tad-vijñānārthaṁ sa gurum evābhigacchet, śrotriyaṁ brahma-niṣṭham. (Muṇḍaka Upaniṣad 1.2.12)
This mantra, that: "If you want to learn that transcendental subject, then . . . first word is that if you are eager to learn that subject.
In the material world also, suppose if I want to learn the art of music. Then I have to find out somebody who is a musician. Without having the association of a musician, nobody can learn the art of music. Or any art. Suppose if you want to become an engineer. So you have to enter yourself in an engineering college or technical college and learn there. Nobody can become a medical practitioner simply by purchasing book from the market and reading at home. That is not possible. You have to admit yourself in a medical college and undergo training and practical examination, so many things. Simply by purchasing book, it is not possible.
Similarly, if you want to learn Bhagavad-gītā or any transcendental subject matter, here is the instruction by Lord Kṛṣṇa Himself. Lord Kṛṣṇa Himself, because He is the speaker of this Bhagavad-gītā, He says that tad viddhi praṇipātena paripraśnena sevayā (BG 4.34):
You must go to a person where you can surrender yourself.