Professor Durckheim: And this understanding has to be an experience.
Prabhupāda: Yes, it is experienced, but on account of his foolishness he is thinking otherwise. He knows that "I am not this body. I am now in this body of old man, but I was not in this body, say, fifty years ago. Therefore I am not this body, that body or this body. I am different from the body." This is very easy experience. I am existing. I understand that I existed in a baby's body. I existed in a child's body, boy's body. So I have now changed so many bodies. Therefore I am not this body. Just like you dress. You are now in black coat, and next moment you can be in other color. But you are not this coat. You have changed the coat. Similarly, I have changed the body, but I am not this body. This is self-realization. First of all let me know that "I am not this body; I am living within this body." You are not this coat. If I ask you, "Mr. Blackcoat," that is my foolishness. You are neither black coat or white coat. And that is self-realization.
Professor Durckheim: And yet isn't there difficulty. You can already have understood very well that you are not the body, but as long, for instance, as you have still fear of death, you didn't understand that experience. As soon as you understood by experience, you have no fear of death because you know that you can't die.
Prabhupāda: So experience is received by higher knowledge. Experience means higher knowledge. Just like a child...
Professor Durckheim: Experience means...
Prabhupāda: Higher knowledge. Higher knowledge.
Professor Durckheim: As soon as you have the experience, you get the higher knowledge.
Prabhupāda: Yes. So the more you are highly elevated in knowledge, your experience is perfect.
Professor Durckheim: I would like to say the other way around: As more as you advance in experience, the more you have higher knowledge.
Prabhupāda: But experience, it may be slow. But higher knowledge you can get immediately.
Professor Durckheim: Yes. Like flash.
Prabhupāda: Yes. Just like Kṛṣṇa says...
Professor Durckheim: When it's awakening.
Prabhupāda: Yes. Kṛṣṇa says that you are not this body. So instead of my experiencing for years and years that "I am not this body," we take the knowledge from Kṛṣṇa, the perfect, and my experience is now received.
Professor Durckheim: Yes, I understand.
Prabhupāda: Therefore Vedic instruction is tad-vijñānārthaṁ sa gurum eva abhigacchet (MU 1.2.12). In order to get first-class experience of the perfection of life, you must approach guru. That is the Vedic injunction. Samit-pāṇiḥ śrotriyaṁ brahma-niṣṭham. Now, who is guru? Whom shall I approach? So the next line explains that approach such guru, śrotriyam, who has heard from his guru perfectly, that guru. Who had no chance of hearing from perfect guru, he is not guru. This is called guru-paramparā, disciplic succession. I hear from a perfect person, and I distribute the knowledge the same way, without any change. So Kṛṣṇa gives us knowledge in the Bhagavad-gītā. We are distributing the same knowledge.