The material world is unhappy. It is all already miserable. It will be more miserable. He'll feel always disturbed, miserable, faithless. So for a faithless, the situation is very precarious.
So here is an authoritative version in the authoritative book, Bhagavad-gītā. And spoken by the Lord Himself, Śrī Kṛṣṇa. And if we accept faithfully, with confidence that, "Here is an authority . . ." Just the same way that when I am purchasing a ticket from a recognized company . . . just like I am keeping my money in some bank, thousands of dollars. Why? With faith. With faith. They have created some faith. Otherwise, thousands and thousands of dollars are coming in the bank. Why? There is faith. Who knows? The bank may fail or may not pay. Because the money is out of my hand, now they may not pay it. It may be. But because I have faith, I am putting my money there. So faith is required.
Where? Authority. Here is authority. Why are you putting our money in the bank? Because you have got faith. We have confidence that, "This bank will not fail." Similarly, if we can keep our faith in an ordinary bank or a traveling agent, can we not keep our faith Kṛṣṇa, who is accepted as the Supreme Personality of Godhead by all other big authorities, even by Śaṅkarācārya, Rāmānujācārya, Lord Caitanya and all these?
So we have to follow the footprints of great authorities. Mahājano yena gataḥ sa panthāḥ (CC Madhya 17.186). He'll be situat . . . just like we also follow others. Just like if I put some money in a bank, I see, "So many people are keeping their money. So I may also keep." So if Kṛṣṇa has been accepted as the supreme authority by so many big, big men, why should we not keep our faith in Kṛṣṇa? Or Jesus Christ? That's all right. We must keep our faith, and faithfully we shall discharge our duties. And if we follow that principle, the result is guaranteed.