The different types of body means that is our punishment. We may think it as happiness, but as soon as you accept a material body, you are subjected to the four principles of material distresses. What is that? Janma, mṛtyu, jarā, vyādhi. You may think that you are very scientifically advanced—"There is no more distress in my life"—but Kṛṣṇa says: "No. If you are intelligent, then you should think of these four principle as distresses." What is that? Birth, death, old age and disease. But the modern so-called scientist, they cannot make any solution for birth, death, old age and disease; therefore they have left them aside: "Oh, don't care for them." That is ignorance.
Our real problem is not this temporary problem that we are in such-and-such distressed condition. That is temporary. But real problem is, as Kṛṣṇa says in the Bhagavad-gītā, janma-mṛtyu-jarā-vyādhi-duḥkha-doṣānudarśanam (BG 13.9). If anyone is intelligent enough, he should always keep before him that there are . . . these are my distresses: janma-mṛtyu-jarā-vyādhi. I don't want to die, so what I have done for stopping my death? What have I done to stop my birth? Huh? Because as soon as I die, again I enter into the womb of a particular type of mother. Again I have to live there, packed up. That is the . . . everyone knows. I cannot move even. No independence.