Tamāla Kṛṣṇa: "A person acting for Kṛṣṇa or in Kṛṣṇa consciousness under proper guidance and without attachment to the result of the work, is certainly making progress toward the supreme goal of life. Indirectly, Arjuna is told that he should fight the Battle of Kurukṣetra without attachment in the interest of Kṛṣṇa because Kṛṣṇa wanted him to fight. To be a good man or a nonviolent man is also a personal attachment, but to act on behalf of the Supreme's desire is to act without attachment for the result. That is the perfect action of the highest degree, recommended by the Supreme Personality of Godhead Śrī Kṛṣṇa.
Vedic rituals, like prescribed sacrifices, are performed for purification of impious activities that were performed in the field of sense gratification. But a person who is acting in Kṛṣṇa consciousness is transcendental to the actions and reactions of good or evil work. A Kṛṣṇa conscious person has no attachment to the result, but acts on behalf of Kṛṣṇa alone. He engages in all kinds of activities, but is completely nonattached."
Prabhupāda: Yes. Just like you go to your office. You are working on behalf of the particular office. So your duty is to discharge the occupation which is entrusted upon you. So far the loss or gain of that department or that establishment, you have nothing to do. So a Kṛṣṇa conscious person acts on behalf of Kṛṣṇa. These boys they are going to preach Kṛṣṇa consciousness. People may receive it or not receive it. That doesn't matter. Their duty is to preach. The fortunate person will be attracted, unfortunate may not be attracted, but they have to do the duty. It is very simple.
So a Kṛṣṇa conscious person should not be disturbed whether his preaching work is being accepted by the people or not. It doesn't matter. My Guru Mahārāja used to say that... If somebody said that "We went to preach in such and such place. Only there were three or four, attendance." So my Guru Mahārāja used to encourage them and it is factual—that "Why, two, three men were there was sufficient. If there were none, you could speak and the walls would hear you." You see. "Why you are disappointed?" So even the walls, they hear, then our kīrtana is sufficient. You don't mind. Because only fortunate persons... Bahūnāṁ janmanām ante (BG 7.19). Manuṣyāṇāṁ sahasreṣu (BG 7.3). So to become God conscious, Kṛṣṇa conscious, is not very cheap thing. It requires a great amount of austerity, penance to come to this stage. So never be disappointed that because people are not responding. You see?
There are many good examples. When Lord Jesus Christ also preached God consciousness, only a few followers were there, and still, he had to sacrifice his life. But he was never disappointed. That should be attitude of the preacher. People may accept it or not accept it, we should go on. Because if Kṛṣṇa is satisfied, if Kṛṣṇa sees, "Oh, these boys are doing very nice. They are trying their best to preach," that is your reward. That's all. People may accept or not accept, it doesn't matter. Go on.
Tamāla Kṛṣṇa: Twenty: "Even kings like Janaka and others attained the perfectional stage by performance of prescribed duties. Therefore just for the sake of educating the people in general you should perform your work (BG 3.20)."
Prabhupāda: There is no cause of disappointment. You have to do your duty, that's all. Kāryam. Kāryam means "It is my duty, I have to do it."