Everyone is trying to be perfect. The whole struggle of existence is going on all over the world, how to become perfect. So that perfection ideal is different of different persons. Somebody is thinking that, "If I have a nice bungalow and a nice bank balance and nice wife and children and family, then my life is perfect." Somebody is thinking that, "If I can make my country very happy in comparison to other country, then it is happy . . ." So there are different types of perfection. But actual perfection is . . . they do not know. That is indicated, that I am . . . because I have been described, I am the soul; I am not this body. Dehino 'smin yathā dehe (BG 2.13). Within this body there is the dehī. Dehī means the proprietor of this body.
So that dehī, he is, tathā dehāntara-prāptiḥ, he is changing from one body to another. One body . . . just like we have got experience in this life also, from childhood to boyhood, boyhood to youthhood. As we are changing, past and present, therefore after this body is annihilated, na hanyate hanyamāne śarīre (BG 2.20), I am not annihilated; I take another body. That body . . . what kind of body? That will depend on my work. Just like we become diseased. As we infect certain type of disease, we suffer from that disease. This is practical. Nature's law is there. If you infect some disease, you will have to suffer from that disease. Similarly, as we are creating our mentality by different types of activity, our next life will be according to that mentality. This is the law of nature.
But we do not know. Prakṛteḥ kriyamāṇāni guṇaiḥ karmāṇi sarvaśaḥ (BG 3.27). Actually, prakṛti, nature, is pulling us according to our desire, or according to our . . . the desire is contamination, the mental contamination. And we are creating different types of body. So our real suffering is the transmigration from one body to another. That we do not know. There is no scientist . . . but it is stated in the Bhagavad-gītā, tathā dehāntara-prāptiḥ (BG 2.13). You have to accept. And that is explained in other places, in Śrīmad-Bhāgavatam. karmaṇā daiva-netreṇa jantur deha upapatti (SB 3.31.1). As you are creating the situation.
In the Bhagavad-gītā it is also stated, yaṁ yaṁ vāpi smaran bhāvaṁ tyajaty ante kalevaram (BG 8.6). At the time of your death, the situation which you have created, it will carry you. Because mind is there. Mind is subtle. Intelligence is subtle—that mind, intelligence and ego. The subtle body is there. The gross body is lost. But the subtle body will take you to another gross body. It will take to the womb of another mother. And according to your karma, the mother's . . . by the mother's help you will get a body, and duly you will come out and begin your work. This is nature's process. It is going on.