Prabhupāda: No, Kṛṣṇa's mercy you can take also, provided it is delivered as it is. Now, just like we are instructing people Bhagavad-gītā. The Bhagavad-gītā says, Kṛṣṇa says, sarva-dharmān parityajya mām ekaṁ śaraṇaṁ vraja (BG 18.66). Now we are saying that "You give up everything, just surrender to Kṛṣṇa." So therefore there is no difference between Kṛṣṇa's instruction and our instruction. There is no deviation. So if you receive knowledge in that perfect way, then it is as god as receiving the instruction directly from Kṛṣṇa. But you don't change anything.
Bob: When I pray faithfully and reverently, does Kṛṣṇa hear me?
Prabhupāda: Yes.
Bob: Directly?
Prabhupāda: Yes.
Bob: From me to Him?
Prabhupāda: Because He's within your heart, He's always hearing you. When you are praying or not praying, you are doing some nonsense, He also hearing. And when you pray, that is very good, welcome. But even if you are doing some nonsense, He's hearing.
Bob: Is praying louder than nonsense?
Prabhupāda: Huh?
Bob: To Kṛṣṇa's ear, is praying louder than nonsense talk.
Prabhupāda: No, He's all-perfect. He can hear any temper, or any degree of saying. Even if you don't speak, even if you simply think, He can hear you. As soon as you think that "I shall do it," then He hears you. Sarvasya cāhaṁ hṛdi sanniviṣṭaḥ (BG 15.15).