So why does He comes, that is also described. Paritrāṇāya sādhūnāṁ vināśāya ca duṣkṛtām (BG 4.8), yuge yuge sambhavāmi. So the Supreme Personality of Godhead Kṛṣṇa descends to give us knowledge like Bhagavad-gītā, personally speaking, so that even after disappearance of Kṛṣṇa, you can take advantage of Bhagavad-gītā and, as Arjuna is asking personally, so similarly, all Your question, not only religious...
Of course, when there is something, talks about God, it is taken as religious. So religious, the meaning of religion in the English dictionary is different from what we mean by religion, that in the dictionary it is said, "Religion is a kind of faith." Faith may be wrong or right, but religion cannot be wrong or right. Religion must be correct. That is the meaning of religion. the example is that the sugar is sweet. It is not the question of wrong or right. Sugar must be always sweet. You cannot change it. That is religion. Chili is hot. That is correct. Chili cannot be sweet, and sugar cannot be hot. So religion means that. Religion described in the Vedic śāstras is said, dharmaṁ tu sākṣād bhagavat-praṇītam: (SB 6.3.19) "Dharma means..." The plain description of religion is "the code, or the laws, given by God." Dharmaṁ tu sākṣād bhagavat-praṇītam (SB 6.3.19).
Just like the state law means the order given by the government. That is correct. You cannot accept government laws in a way, that "I may believe or I may not believe." That is not law. Law means you must believe it. That is law. If you don't believe, then you will be punished. That is law.
Similarly, religion means, as it is described in the English dictionary that it is a kind of faith... Faith I may accept. Suppose Hindu faith or Christian faith. So you may accept or not accept; there is no compulsion. But religion does not mean like that. Religion means you must accept. You believe or don't believe. It doesn't matter. You must accept. That is religion. And what is that religion? That religion... From Bhagavad-gītā we find, sarva-dharmān parityajya mām ekaṁ śaraṇaṁ vraja (BG 18.66). That is religion.
Why Kṛṣṇa says, dharma-saṁsthāpanārthāya sambhavāmi yuge yuge: "I come down on this planet or in this universe for reestablishing the principles of religion"? Dharma-saṁsthāpanārthāya sambhavāmi yuge yuge. Then what is that dharma? That is not Hindu dharma or Muslim dharma or Christian dharma or this dharma or that dharma. No. Kṛṣṇa, or the Supreme Personality of Godhead, does not come down to teach a sectarian type of dharma. There is one dharma. What is that one dharma? To surrender to the orders of God. That's all. Sarva-dharmān parityajya mām ekaṁ śaraṇaṁ vraja (BG 18.66). This is dharma.