Please accept my humble obeisance. All glories to Srila Prabhupada
Nandarani: Is our rasa with Krsna already established? I mean, is it eternal? Or do we, can we attain...
Prabhupada: No. It is already established. You have got eternal relationship. When you become liberated, you realize that your relationship is with Krsna like this. You'll develop that taste, whether in santa-rasa or dasya-rasa or madhurya-rasa or vatsalya-rasa. But that is not to be imitated at the present moment. When we are actually liberated. To come to that stage, the routine work, regulative work, should be followed: chanting, hearing, worshiping, following the regulative principles. In this way, gradually, as we are purified, we come to the pure consciousness, Krsna consciousness. Then at once we understand, "My relationship with Krsna is like this." And you are transferred to the Krsnaloka in that humor.
Lecture -- Los Angeles, November 13, 1968
There is nothing to be researched. Eternal knowledge has nothing to be researched. There is no question of research. It is already established. Otherwise there is no meaning of eternal.
Bhagavad-gita 4.1 -- Montreal, August 24, 1968
Arjuna bases his argument not on his own personal experience, but on what he has heard from the authorities. That is the way of receiving real knowledge. One cannot reach the real point of factual knowledge without being helped by the right person who is already established in that knowledge.