June 29, 1971 Srila Prabhupada: We can serve Kṛṣṇa in four ways. First of all, try to dedicate your life for Kṛṣṇa. That is first class. If not, then spare some of your money for Kṛṣṇa. If not, then give some words for Kṛṣṇa. Or give some intelligence. You can give. "Sir, if for organizing your this movement we know that you require money, but I have no money. So I have got a friend. He is rich. If you come, he will help you." This is intelligence.
You can serve Kṛṣṇa by intelligence. You can serve Kṛṣṇa by your money. You can serve Kṛṣṇa by your life. And at last, you can serve Kṛṣṇa by your words. Simply go door to door and request everyone, "Please chant Hare Kṛṣṇa. There will be no loss on your part. The gain you will see within one week. The gain you will see within one week if you chant Hare Kṛṣṇa. But you are not losing."
If we chant Hare Kṛṣṇa mantra, as soon as our heart is cleansed . . .That is the first benediction of chanting Hare Kṛṣṇa mantra, that our heart becomes cleans
