Prabhupāda: Kṛṣṇa says, sarva-dharmān parityajya mām ekaṁ śaraṇaṁ vraja (BG 18.66), and one who has got faith in these words—"Yes, if I surrender to Kṛṣṇa, all success will follow"—this is faith.
So faith is the beginning of Kṛṣṇa consciousness. Ādau śraddhā tataḥ sādhu-saṅgaḥ (CC Madhya 23.14, Bhakti-rasāmṛta-sindhu 1.4.15). So if we have got faith in the words of Kṛṣṇa—they are very openly spoken—then our life becomes successful. But we have no faith in Kṛṣṇa. They take Kṛṣṇa as ordinary human being. Avajānanti māṁ mūḍhāḥ (BG 9.11). If you say that "You have no faith in Kṛṣṇa. Then you are a mūḍha," he becomes angry. But I don't say; Kṛṣṇa says. We are simply repeating the words of Kṛṣṇa: na māṁ duṣkṛtino mūḍhāḥ prapadyante narādhamāḥ (BG 7.15). So if we say, people become angry. And we don't say anything. We simply repeat. That is our business. We are not learned scholars, but our mission is to repeat the words of Kṛṣṇa. That is Caitanya Mahāprabhu's order. He says, āmāra ājñāya guru hañā tāra' ei deśa (CC Madhya 7.128): "You become guru." "Now, how shall I become guru? I am neither learned nor Vedantist, neither sannyāsī. How can I become guru?" "No, no, you have no difficulty. You, on My order, become guru simply..." Yāre dekha tāre kaha kṛṣṇa-upadeśa. Bās. "You become guru. Whomever you meet, you simply try to convince him what Kṛṣṇa has spoken. Then you become guru." So we request everyone the same thing. And become guru. It is very urgently necessary. I... People are becoming godless, atheist, nonbelievers, and they are suffering. So every village, every home, every neighborhood, they require guru. But who will be guru? One who repeats the instruction of Kṛṣṇa. Yāre dekha tāre kaha. It is very easy.