Nowadays this is going on. Yata mata tata patha: "You can manufacture your own religion." This is going on. "You are okay; I am okay." "I manufacture my religion. You manufacture your religion. Don't fight. Let us become brother." This is going on. So how you can be brother? The dog remains a dog. How they can become brother? It is not possible. Therefore so many religious systems, they are all rascaldom. One religion. That is the order of God. That is religion. If you want one religion, then you must know who is God and you must abide by the order of God. That is religion, very simple thing. You cannot manufacture, concoction. That is not religion. Therefore Bhāgavata, it is said, dharmaḥ projjhita-kaitavaḥ (SB 1.1.2): "All these cheating type of religion is rejected, kicked out from Śrīmad-Bhāgavatam." What is that religion there? Paraṁ satyaṁ dhīmahi (SB 1.1.1): "The Supreme Truth, the Absolute Truth, we are accepting." This is religion.
So the Absolute Truth is Kṛṣṇa. So Kṛṣṇa is God, accepted in the Vedas. That is . . . Kṛṣṇa also says in the Bhagavad-gītā, ahaṁ sarvasya prabhavaḥ (BG 10.8). From Vedic knowledge, you get all knowledge. So if you don't accept Kṛṣṇa as God, that is also your mistake. You do not know God, but here Kṛṣṇa presents Himself as God, and He is accepted by authorities. So you have to accept. If you say that "I don't accept Kṛṣṇa," then you have to present somebody else if you know God. And if you say that "I do not know what is God," then you have to accept Kṛṣṇa, because you do not know. Here the authority says, "Kṛṣṇa is God." So you have to accept that. You cannot deny it. So Kṛṣṇa is the Supreme Personality of Godhead, and Kṛṣṇa means Nārāyaṇa. Therefore it is said, vedo nārāyaṇaḥ sākṣāt. Veda means . . . Therefore knowledge or religion means what is ordained, what is described by the words of Kṛṣṇa, Nārāyaṇa.
Then the next question will be: "Then how Nārāyaṇa learned the Vedas, or knowledge?" Because we have got experience, we receive knowledge from others. So this question may be raised. Therefore it is said, sākṣāt svayambhūḥ. He does not require. That is God. All of us, we require knowledge by somebody, guru. But Kṛṣṇa does not require any guru, although when He comes, He accepts guru just to teach us. Caitanya Mahāprabhu had guru, Kṛṣṇa has also guru, because when They incarnate, They play just like ordinary man. But the knowledge is self-sufficient. The example is given like this: Just like the cloud. Cloud takes water from the sea, and he pours it down, and again the water goes down to the sea. So all knowledge comes from Kṛṣṇa, but when Kṛṣṇa appears, He takes the same knowledge from, through the guru. Just try to understand. The knowledge is just like the sea, full knowledge, but it distributes the water on the land. Again the water goes down. Similarly, anyone who becomes Kṛṣṇa's guru or Caitanya Mahāprabhu's guru, They take knowledge from him, but superficially Kṛṣṇa accepts guru. He has no guru. Svayambhū. Therefore it is called svayambhū. Svayambhū. Svayambhūr iti śuśruma. Kṛṣṇa has no cause. Sarva-kāraṇa-kāraṇam (Bs. 5.1). Anādir ādir govindaḥ. Īśvaraḥ paramaḥ kṛṣṇaḥ sac-cid-ānanda-vigrahaḥ. Īśvara, the Supreme Lord, is Kṛṣṇa, sac-cid-ānanda-vigraha, anādi. He has no source of knowledge. That is called svayambhū.