Our process is: What Kṛṣṇa says, we believe Kṛṣṇa, because He is the supreme authority. Mattaḥ parataraṁ nānyat kiñcid asti dhanañjaya (BG 7.7). So Kṛṣṇa is the supreme authority, accepted by all ācāryas. In our India the ācāryas are Rāmānujācārya, Śaṅkarācārya, Madhvācārya. They all accepted Kṛṣṇa, the Supreme. Formerly the ācāryas like Vyāsadeva, Śukadeva Gosvāmī, Nārada . . .; later, Caitanya Mahāprabhu. So all accept Kṛṣṇa the Supreme Personality of Godhead. Therefore we should accept what Kṛṣṇa said, that. Then you are sound. No question of "my religion," "your religion." What Kṛṣṇa said, that is sound.
So Kṛṣṇa says very simple thing. Our real problem is how to get relief from the material world. One may say, "What is the fault of material world?" The fault is that you may arrange . . . First of all, there is no happiness. But even though you make some arrangement, still, you are not allowed to stay. Suppose you have made very good arrangement: "I have got very nice house, nice car, very nice family, wife and relatives, and business," just like that. But where is the guarantee that you shall stay here and enjoy? That is the question. Suppose you have arranged everything; but nature will allow? Nobody can check. You cannot say that "I've arranged so nicely for my happiness, and why Yamarāja will take it away from me forcibly? Give me some time to set it up." "No." This is the problem. So that is the defect in material civilization, so-called material civilization, that if I try to do something with hard labor to make yourself happy, but at any moment the whole thing will be smashed.