Tad-vijñānārthaṁ sa gurum evābhigacchet. So there, how to learn from guru, that is also stated. Tad viddhi: try to learn from him. Tad viddhi praṇipātena. First of all surrender yourself. You cannot go to any person for learning anything where there is no sense of surrender. I accept a guru, but in my mind I remain independent, "Oh, why shall I abide by the orders of guru?" that means there is no surrender. There is no surrender. It is false. It is just to satisfy some motive, but that will not help. If you have got any duplicity in your mind, then you'll never be successful in any field of activities. So the process is . . . tad viddhi praṇipātena (BG 4.34). Must be surrendered. Praṇipāta means prakṛṣṭa-rūpeṇa nipāta. And therefore, unless you find somebody where you can fully surrender, don't accept guru. That is cheating.
Unless you are fully confident that "I am surrendering to this person. He is . . . actually he is superior to me. He can give proper knowledge . . ." So therefore the process is before accepting a guru, one must hear him at least for one year.