Pralayantam means at the time of death, when we give up this body. Upāśritāḥ. Then we get a similar body next life. That is, I mean to say, arranged by the nature's law. Nature has nothing to do. It will automatically follow. Just like you infect some disease, nature's law is that you must suffer from that disease. Nobody has got to do anything. The law is so . . . nature's law is like that. If you take more food than you can digest . . . (child crying) (aside) Where is that child? . . . then immediately there will be dysentery. This is nature's law. If you take more than you can digest, then immediately there will be indigestion, means you cannot assimilate so much food. That is nature's law. If you touch fire, either you touch or your innocent child touch, the fire will burn it. Fire will not consider that "Here is a child. Let me excuse." No, it will burn. This is nature's law. Similarly, the thoughts which you are maintaining during your lifetime, if that thought becomes prominent—naturally it becomes—at the time of death, then you are going to get a similar body. If you are thinking like a demon, then you get the demon's body next life. And if you are thinking like a devotee, then you get your next life back to home, back to Godhead. This is nature's law. Therefore, if you practice instead of thinking like the demons, how to gratify senses . . . that is the demonic thought. They are concerned with this body. If you think of Kṛṣṇa, how to serve Him, that is your perfection of life, because you'll think at the time of death of Kṛṣṇa. Ante nārāyaṇa-smṛtiḥ (SB 2.1.6). That is the perfection of life. Ante, at the time of death, if you remember Kṛṣṇa, then your life is successful. Tyaktvā dehaṁ punar janma naiti mām eti kaunteya (BG 4.9).
So we have to do like that, not like the asuras, or demons. Thinking must be there, but if you think of this body—how to keep it very comfortably, how to enjoy senses, how to have more money, how to have more men or women, how to see naked dance, how to do, how to this, how to this—then you are demon. And at the time of death, naturally we shall think of. Then I get again demonic life or animal life or tree life. There are so many different forms of life that is in our presence. Before us there are so many examples. If you get a life of a tree, naked . . . tree is naked. He's not ashamed to remain naked. And for ten thousand years you stand up.
Wherefrom this life comes? It requires thought. Why the world is not full of one kind of forms of life? Why there are different types of life? Because different desires and nature's law. Nature's law, there is no excuse, the same thing, that if a child even touches fire, nature is not very merciful; it will burn. Similarly, at the time of death we have to think very rightly. That is required. That is human life. You have to train yourself in such a way that at the time of death you think of Kṛṣṇa.
Therefore Kṛṣṇa advises, man-manā bhava mad-bhakto. Man-manā bhava mad-bhakto mad-yājī māṁ namaskuru (BG 18.65), mām evaiṣyasi asaṁśayam. Asaṁśayam, "without any doubt." If you want to go back to home, back to Godhead, which is known as Kṛṣṇaloka, Vaikuṇṭhaloka . . . Vaikuṇṭhaloka means . . . kuṇṭha means this anxiety, and vaikuṇṭha . . . vigata-kuṇṭha. Vigata means without. There is no more any anxiety. That is Vaikuṇṭhaloka, spiritual world. Material world is kuṇṭha. Kuṇṭha means anxiety, full of anxiety, and Vaikuṇṭha means there is no anxiety; everything is freedom, sac-cid-ānanda. Vaikuṇṭha life means sac-cid-ānanda. Kṛṣṇa's body is sac-cid-ānanda-vigrahaḥ (Bs. 5.1). Not only Kṛṣṇa's body; anyone who lives in the spiritual world, his body is spiritual body, and spiritual body means sat, cit, ānanda. Sat means eternal. Spiritual body never annihilates. The material body annihilates. Every one of us, we have got now material body. It will annihilate. But in the spiritual world, when you have got spiritual body, it does not annihilate. Eternal. Eternal life. And cit means knowledge. So in this material body we have no knowledge. Even if we have got . . . now imperfect knowledge, limited knowledge. But in the spiritual life you have got full knowledge. That is spiritual life.