(Click to enlarge painting of Mother Yasoda seeing the entire universe in Krishna's mouth)
Devotee: Our brain is so tiny.
Devotee (2): Yes.
Prabhupāda: Therefore acintya. Therefore acintya, inconceivable. Chant Hare Kṛṣṇa. Don't try to understand Kṛṣṇa. Simply try to love Him. That is perfection. That's all. You cannot understand Kṛṣṇa. Nobody can understand. Kṛṣṇa Himself cannot understand Himself. Yes. He's so acintya. And what to speak of us. Therefore our only business: how to love Kṛṣṇa, how to serve Kṛṣṇa. That's all. That is perfection. You cannot understand Kṛṣṇa. Nobody can. Kṛṣṇa Himself cannot understand.
Devotee (2): The more we understand, the more we can convince others.
Prabhupāda: No. Better you understand this, that you cannot understand. This understanding is better.
Devotee (2): No, but what I said is that...
Prabhupāda: That "I cannot understand," this understanding.
Devotee (3): Then you have to give up. Then just simply love Kṛṣṇa.
Prabhupāda: Yes. This is real understanding, that "Kṛṣṇa cannot be understood. Simply let me love as far as possible, as I can, whatever is my, in my capacity." That is perfection.
Devotee (2): Yes. But still, we deal with this philosophy for...
Prabhupāda: Yes. On the whole, as Kṛṣṇa says, we can understand that. That's all. You cannot understand Kṛṣṇa fully. It is not possible.
Devotee (2): But even... Just like this book, this is for convincing people. This book is for convincing them to understand.
Prabhupāda: No, still, we understand better than them.
Devotee (2): Yes.
Prabhupāda: Kṛṣṇa is not understandable does not mean that we are also as fool as they are. Rather, Kṛṣṇa is so big that He is understandable even by us, and what to, about these rascals. What you can understand? We cannot understand. This should be the position, that "We are constantly serving Kṛṣṇa, we cannot understand Him. And what, rascal, you can understand?" The attitude should be taken like that.
Devotee (3): We just accept whatever Kṛṣṇa says...
Prabhupāda: That's it.
(Srila Prabhupada Conversation, London, August 17, 1971)