Who requires a guru? Guru's not a fashion. "Oh, I have got a guru. I shall make a guru." Guru means one who's serious. Tasmād guruṁ prapadyeta. One has to seek out a guru. Why? Jijñāsu śreya uttamam. One who is inquisitive of the Supreme. Not guru make a fashion. Just like we keep a dog, fashion. Similarly, we keep a guru. That is not guru karma (?). "Guru will act according to my decision." Not like that. Guru means one who can give you Kṛṣṇa. That is guru. Kṛṣṇa sei tomāra. Because Kṛṣṇa is guru. That is stated in the Brahma-saṁhitā. Vedeṣu durlabhaṁ adurlabhaṁ ātma-bhaktau (Bs. 5.33). Vedeṣu durlabhaṁ. If you want to search out... Although Vedas means knowledge, and the ultimate knowledge is to understand Kṛṣṇa. Vedaiś ca sarvair aham eva vedyam (BG 15.15). This is the instruction. So if you independently wants to study Vedas, just, there is, there are some rascals... They say: "We understand only Vedas." What do you understand Veda? How you'll understand Veda? So Vedas says, tad vijñānārthaṁ sa gurum eva abhigacchet (MU 1.2.12). You'll understand Vedas by taking one, purchasing one Vedas book, or taking it, you'll understand Vedas? Vedānta is not so cheap thing. Without becoming a brāhmaṇa, nobody can understand a Veda, what is Veda. Therefore, it is restricted. Without becoming brāhmaṇa, nobody is allowed to study Vedas. It's all nonsense. What you'll understand about the Vedas? Therefore Vyāsadeva, after compiling the four Vedas, dividing the four Vedas, he made Mahābhārata. Because the Vedas, subject matter of Vedas is so difficult. Strī-śūdra-dvija-bandhūnāṁ trayī na śruti-gocarāḥ (SB 1.4.25). For women, for śūdras, and for the dvija bandhu. They cannot understand what is Vedas. So all these rascal dvija-bandhus and śūdras, they want to study Vedas. No, that is not possible. One has to become first of all situated in the brahminical qualification, satyaṁ śamo damas titiksva ārjavaṁ jñānaṁ vijñānam āstikyaṁ brahma karma sva-bhāva... (BG 18.42). Then touch Veda. Otherwise, what you'll understand Vedas? Nonsense. Therefore, Vedas says: tad vijñānārthaṁ sa gurum (MU 1.2.12). You must approach a guru to understand Veda. And what is that Veda? Vedaiś ca sarvair aham eva vedyam (BG 15.15). The Vedas means, to study Vedas means to understand Kṛṣṇa. And surrender unto Him. This is Vedic knowledge. Where Arjuna says that: prapannam. "Now I am surrender unto You. I am now no more going to talk with You on equal level just as if I know so many things." He was right, but he was thinking on the material platform. He was thinking that praduṣyanti kula-striyaḥ (BG 1.40). If everyone... This is material point. But Vedic knowledge is spiritual, uttamam. Tasmād guruṁ prapadyeta jijñāsu śreya uttamam (SB 11.3.21). Uttamam. This śreya. Uttamam. Yac chreya syāt niścitaṁ. Fixed-up. There is, there is no question of changing. That instruction is now, will be given by Kṛṣṇa. Sarva-dharmān parityaja mām ekaṁ śaraṇaṁ vraja. And this takes place—bahūnāṁ janmanām ante jñānavān māṁ prapadyate (BG 7.19).
So therefore in order to achieve the highest, goal of life, one should fully surrender to Kṛṣṇa or His representative. Then his life is successful.