Here Śrī Caitanya Mahāprabhu, He's also Kṛṣṇa. Śrī-kṛṣṇa-caitanya rādhā-kṛṣṇa nahe anya (Caitanya Bhāgavata). He has appeared as devotee. He appeared first of all as the Supreme Lord, Kṛṣṇa, and He instructed Bhagavad-gītā to the fallen souls and He asserted His Lordship, sarva-dharmān parityajya mām ekaṁ śaraṇaṁ vraja (BG 18.66). But puffed-up, so-called learned scholars and men of position, they declined, "Why shall I surrender to Kṛṣṇa?" Therefore Kṛṣṇa Himself as devotee of Kṛṣṇa appeared. That is Śrī Caitanya Mahāprabhu. Caitanya Mahāprabhu is Kṛṣṇa Himself, but He's teaching how to approach Kṛṣṇa. And His disciples, they are also teaching the same philosophy. There is no difference between Kṛṣṇa's philosophy and Caitanya Mahāprabhu's philosophy. It is not that we can manufacture some philosophy. That is nonsense. Philosophy is one; religion is one. Everyone has to follow. There is no second alternative. That is the preaching about . . . Mām ekam, not that "Whatever you like, you can do." No, that is not. Mām ekam—simply Kṛṣṇa. There are some missionaries, they say that you can manufacture in your . . . your own way of worship, and whatever you accept, that is all right. These bogus things are not accepted by the ācāryas. Mām ekam, Kṛṣṇa. Kṛṣṇas tu bhagavān svayam (SB 1.3.28). If you want to understand what is Bhagavān, that is Kṛṣṇa.
Bhagavān . . . Religion means to understand Bhagavān. The other day we were consulting dictionary? Religion means the process by which we can understand the supreme controller.