Just like your friend has gone to India. How do you know? You know that he purchased a ticket for India and he has gone to India, so there is no need of agitation, "Oh, where he has gone? Where he has gone? Where he has gone?" Similarly, when a man dies, one who is dhīra . . . here especially the word is used, dhīras tatra na muhyati. Muhyati means bewildered. Tathā dehāntara-prāptiḥ (BG 2.13). Just like the parents. The child is changing body.
The mother knows, "My child was six inches long within my womb. When he came out, he was twelve inches long, then thirteen inches, fourteen inches, in this way, now three feet, four feet." The mother is not agitated the child is changing body. Similarly, a dhīra, one who knows the laws of transmigration of the soul, he does not lament at the death of his father or friend. He knows that, "My father has now gone to such-and-such place." That also he can know. How? With reference to the śāstra. Therefore Vedānta-sūtra says that you should see everything through the śāstra, śāstra-cakṣuṣā.
Now there is one rascal, he is preaching there is no need of śāstra. Without śāstra, how you can make progress? Just like you are seeing the sun daily just like a disk. But if you, through the śāstra, you see geography, then you will understand the sun is fourteen hundred thousand times bigger than this earth. So how do you know? You have not gone to the sun planet, but how do you know that it is ninety million miles away from your sight and it is fourteen hundred thousand times bigger than this earth? How do you know? Through the śāstra, through the books.
So therefore you should see through the śāstra, authoritatively śāstra, books. What we are speaking about the moon planet, sun planet, or God, His abode is Vaikuṇṭhaloka, spiritual world, so many things we are talking—how we are talking? We are talking through the Vedic literature. Because Vedic literature is authoritative. According to Vedic civilization, we don't accept any book written by rascal. We take, we accept the authority of the Vedas. What is stated there in the Vedas we accept, without any argument.
For example . . . there are many examples. One of the example is that the Veda says that if you touch the stool of an animal, even your own stool . . . that is the system. In India still they are . . . not in the city, but in the villages you will see even ordinary man, he goes to pass stool in the field, and just after passing stool he will take bath just to purify himself, change his cloth. That is the śāstric injunction. But in one place it is said that the stool of the cow is pure.
Now if you argue that, "One place you say that the stool of an animal is impure, even your own stool if you touch you have to take bath, how is that, another animal's stool is pure?" This is superficially contradiction. But those who are following strictly the Vedic principles, they will accept that the stool of cow, or cow dung, is pure. Now, if you argue, "Why it is pure?" then you come to a modern chemical analysis, and you will find the cow dung is full of antiseptic properties. It has been examined in Calcutta by one doctor, Raj Mohan Bose. Therefore, the Vedic injunction is so perfect.