Revatīnandana: "One must be fortunate enough to associate with a person who is in pure consciousness. A Kṛṣṇa conscious person has realized the knowledge by the grace of Kṛṣṇa."
Prabhupāda: Yes, by the grace of Kṛṣṇa, not by academic qualification. We have to acquire the grace of Kṛṣṇa. Then we can understand Kṛṣṇa. Then we can see Kṛṣṇa. Then we can talk with Kṛṣṇa. Then we can do everything. He is a person. He is the Supreme Person. That is the Vedic injunction. Nityo nityānāṁ cetanaś cetanānām (Kaṭha Upaniṣad 2.2.13).
He is the Supreme Person, or the Supreme Eternal. We are all eternal. Our . . . now we, being encaged within this body, we are meeting birth and death. But actually we have no birth and death. We are eternal spirit soul. And according to my work, according to my desire, I am transmigrating from one kind of body to another body, another body, another body. This is going on.
Actually I have no birth and death. This is explained in the Bhagavad-gītā in the Second Chapter you have read: na jāyate na mriyate vā (BG 2.20).
The living entity never takes birth or never dies. Similarly, God is also eternal, you are also eternal. When you establish your eternal relationship with the eternal, complete eternal—nityo nityānāṁ cetanaś cetanānām (Kaṭha Upaniṣad 2.2.13)
He's the supreme living entity amongst the living entities. He's the supreme eternal amongst eternals. So by Kṛṣṇa consciousness, by purifying your senses, this knowledge will come, and you will see God.