For attain, attainment of knowledge, we have to approach such a person where we can keep our faith. If we are faithless, if you keep . . . if we go somewhere where we cannot keep our faith . . . that is also necessary. We must find out such a person who is actually worth for keeping my faith. If we find out a third-class person and keep my faith, then there may be dangerous thing.
So here, Kṛṣṇa is the most authorized personality. Now, anyone who is actually Kṛṣṇa conscious, Kṛṣṇa conscious, then you can accept him as the same as Kṛṣṇa. Because a person who is fully in Kṛṣṇa consciousness, he is the bona fide representative of Kṛṣṇa. He's the bona fide representative of Kṛṣṇa.
So keeping faith on Kṛṣṇa or to His bona fide representative is the same thing. So that śraddhāvān, if you follow, saṁyatendriya, with controlled senses, then your result is guaranteed, and you'll feel it.
How you'll feel it? Just like you are hungry and if you are given some food, foodstuff and you eat it, and as you eat it, you feel that "Yes, I am feeling satisfaction," so you'll feel it. You won't have to ask anybody that, "Whether I am making progress or not?" You yourself will feel it. Acireṇa. Acireṇa śāntim adhi . . . you will feel full peace, acireṇa, very soon.
Then ajñaś cāśraddadhānaś ca saṁśayātmā vinaśyati. And those who are faithless or hesitating, oh, they have no chance. They have no chance. Ajñaś ca. That hesitation is due to also ignorance. Ajñaś ca aśraddadhānaḥ. And ignorant and faithless. Saṁśayātmā, hesitating. Vinaśyati: "He is hopeless." Nāyaṁ lokaḥ asti na paraḥ na sukhaṁ saṁśayātmanaḥ (BG 4.40): "Anyone who is hesitating in accepting this principle of knowledge, or Kṛṣṇa consciousness, for him," nāyaṁ loko 'sti, "not even this material world will be happy. And what to speak of his next life." If he has no faith, then even in this material world he'll be unhappy.
The material world is unhappy. It is all already miserable. It will be more miserable. He'll feel always disturbed, miserable, faithless. So for a faithless, the situation is very precarious.
So here is an authoritative version in the aut