So Kṛṣṇa is describing Himself, kṛṣṇa-kathā. Śrī Caitanya Mahāprabhu's mission is therefore kṛṣṇa-kathā. Yāre dekha tāre kaha kṛṣṇa-kathā, kṛṣṇa-upadeśa (CC Madhya 7.128). Kṛṣṇa-upadeśa. This is the mission. What Kṛṣṇa says, you just preach, you become spiritual master. That is not very difficult. Everyone can become spiritual master. Kṛṣṇa's speaking is there in the Bhagavad-gītā. You simply repeat what Kṛṣṇa says, you become spiritual master. It is not very difficult. Kṛṣṇa says, man-manā bhava mad-bhakto mad-yājī mām; you simply say that, "You become devotee of Kṛṣṇa." Where is the difficulty? No difficulty. Kṛṣṇa says, man-manā bhaktaḥ; you say: "You become Kṛṣṇa's bhakta." Actually we are doing that. We are not doing any miraculous thing. People say that "Swāmījī, you have done miracles." But what miracles I have done? I am simply repeating Kṛṣṇa's words. That's all. So everyone can do that. Everyone can take this matter very seriously—his life will be successful; he will make others successful. It is so nice thing.
Therefore Śukadeva Gosvāmī says, tasmād sarvātmā bhagavān. You must speak about Bhagavān. You must know what is Bhagavān, that Bhagavān is Kṛṣṇa. Kṛṣṇas tu bhagavān svayam. There are many Bhagavāns. That's all right. Or incarnation of Bhagavān. But Bhāgavata says, ete cāṁśa-kalāḥ puṁsaḥ kṛṣṇas tu bhagavān svayam (SB 1.3.28).