So many things we have forgotten, but that does not mean the trouble was not there. Just like in our childhood so many things happened. We might have forgotten, but that does not mean the trouble was not there. The trouble was there. Similarly, at the time of death, the trouble, or the miserable condition, is so acute that we have to give up this body. Sometimes when man becomes very much upset, he commits suicide. He cuts his own throat. Why? He cannot live in this body. Similarly, I, you, every one of us, we have the trouble at the time of death, at the time of birth. Birth and death. We are living entities, we are living soul. Birth and death takes place of this body. The body takes birth and the body is vanquished. Death means sleeping for seven months. That's all. That is death. The soul is... When this body is unfit for living, the soul gives up this body. And by superior arrangement the soul is put again into the womb of a particular type of mother, and the soul develops that particular type of body. Up to seven months the soul remains unconscious. And when the body is developed, again consciousness comes and the child wants to come out of the womb and he moves. Every mother has experienced how the child moves at the age of seven months within the womb.
So it is a great science, how the soul, living soul, is in contact with this material body and how he is transmigrating from one body to another. The example is given just like vāsāṁsi jīrṇāni yathā vihāya (BG 2.22). We are... Just like when the garments, our shirt and coat, becomes too old, we give it up and we accept another shirt and coat... Similarly, I, you, every one of us, we are spirit soul. We are given a type of body and shirt and coat by the arrangement of material nature. Prakṛteḥ kriyamāṇāni guṇaiḥ karmāṇi sarvaśaḥ (BG 3.27). That particular body is given to us for our particular type of standard of living. Just like you European, American, Australians, you have got a particular type, and you are given the opportunity, a particular standard of living. Just if some Indian comes to your European, American, Australian cities, just like your Melbourne city... I was just speaking to my students, "If any Indian comes, so they will be surprised with this standard of living." They will think that "Oh, it is heaven." Because the material prosperity is far different from Indian cities to these American, or European, Australian. There is much difference.
So you have got a particular type of body. You have been given the chance of particular standard of living. Similarly, in India or in Africa or in other country, the living entity has got a particular type of body and his particular type of standard of living is also there. A tiger has got a particular type of body, it has got his own standard of living. Elephant has got a particular type of body, and it has got its standard of living. Similarly, there are higher beings also, in the higher planetary system. They are called Svargaloka, Janaloka, Maharloka, Tapoloka, Brahmaloka. In the Brahmaloka the duration of life is so long that you cannot imagine even calculating twelve hours' time there. That is stated in the Bhagavad-gītā. Most of you have read Bhagavad-gītā, and it is stated there, sahasra-yuga-paryantam ahar yad brahmaṇo viduḥ (BG 8.17). Sahasra-yuga-paryantam. One yuga... This is Kali-yuga. At the present moment it is called Kali-yuga. Before this... This Kali-yuga has passed only five thousand years, and the duration of life of this Kali-yuga is 432,000's of years. Only we have passed five thousand. Before this Kali-yuga there was another yuga, which is known as Dvāpara-yuga. Before that, there was Tretā-yuga. Before that, there was Satya-yuga. All these yugas, taking aggregate years, forty-three hundred thousands of years. And multiply it by one thousand. Then calculate what is the duration of time. That is only twelve hours duration in the Brahmaloka. Sahasra-yuga-paryantam ahar yad brahmaṇo viduḥ (BG 8.17).
So there are very particular informations of all the planets within this universe. Not only within this universe; there are many other planets beyond this universe. That is called Vaikuṇṭhaloka, spiritual world. The spiritual sky is there. That is stated in the Bhagavad-gītā. Paras tasmāt tu bhāvo 'nyo 'vyakto 'vyaktāt sanātanaḥ (BG 8.20). That is perpetual, that anything in that sky is perpetual, and anything within this material sky, they are temporary. In the Brahmaloka there may be duration of life millions of millions of year, but that is also destructible. That is material nature. In the Bhagavad-gītā it is said, ābrahma-bhuvanāl lokāḥ punar āvartino 'rjuna: (BG 8.16) "Even if you go to the Brahmaloka, you will have to come back again." Yad gatvā na nivartante tad dhāma paramaṁ mama (BG 15.6). "But if you come to My loka..." There is Kṛṣṇaloka. That is in the spiritual world, spiritual sky.