If one is interested to know that science, then it is necessary to approach. Just like Arjuna was busy, perturbed, that he has to fight with his relative, the other side, and they will be killed. And he was presenting so many problems that "If I kill my brothers, my sister-in-laws will become widow and they will be polluted, and there will be varṇa-saṅkara generation, then the whole world will be hell." In this way he was thinking, the immediate material problems. But when, after arguing with Kṛṣṇa, he could not find out any solution, then Arjuna submitted to Kṛṣṇa, śiṣyas te 'haṁ śādhi māṁ prapannam (BG 2.7). "My dear Kṛṣṇa, now I don't want to talk with You as friend, because friendly talk, the talking will be very much, but there will be no benefit." Generally we do so. We talk with some person, some friend, without any utility, just to waste time. That is not the way. If you go and talk with some person, then you must derive some benefit. The aim should be there; otherwise simply waste of time. And it is the injunction of the śāstra that, unless one is submissive, the superior man should not talk. Tad viddhi praṇipātena (BG 4.34). Unless one is submissive he will not be able to accept the sublime instruction.
So one has to become submissive. That submissiveness Kṛṣṇa . . . Arjuna is teaching us, śiṣyas te 'haṁ śādhi māṁ prapannam. "I am now submitting myself to You, not that equal position with You, friend and friend equal position. That I am giving up. I am becoming Your disciple, submissive," śiṣyas te 'haṁ śādhi māṁ prapannam (BG 2.7). Prapannam means submissive. And that is the way. You cannot speculate. Your speculation has no value. Athāpi te deva ciraṁ vicinvan (SB 10.14.29). Ciraṁ vicinvan, you can go on speculating for many births, many years, still you will not be able to understand the ultimate goal of your life. It is not possible. Therefore all the śāstras, they advise that you go to a guru. Guru means weighty, one who has got more weight, one who can teach you. Because everyone thinks that "I am learned. I am all-learned. Who can teach me?" No. Nobody is like that. Everyone requires instruction, therefore the Vedic system is adau gurvasrayam: to make one's life fruitful, one must approach guru.