So yogis, they have got information. How they have got information? From the scriptures, from Vedic literature, they have got. Just like before I came to your country I got the description of your country from the books, similarly, we can have all the description of higher planets and the spiritual world. They are mentioned there. The yogi know. The yogi knows everything, and he can transfer his self, any planet he likes. He does not require the help of any sputnik. The sputniks, they are trying for so many years, and they will go on trying for one hundred or one thousand years more. They'll never reach any planet. Be rest assured. This is not the process. This is not the process to reach another planet. Maybe, by scientific process, one man, one man or two man can reach, but that is not the general process. The general process is: if you want to transfer yourself any better planet, then you have to practice this yoga system, or jñāna system, not bhakti system. Bhakti system is not meant for any material planet. That will be explained later on.
Those who are in devotional service of Kṛṣṇa, or the Supreme Lord, they are not interested in any planets of this material world. Why? Because they know. In any planet you can, you can raise yourself, you can elevate yourself, you can go there, but the four principles of material existence are there. What is that? Birth, death, disease and old age. Any planet you go. Your duration of life may be very, very longer than this earth, but death is there. Death is there. But those who are in Kṛṣṇa consciousness or those who are otherwise, those who are not interested in this material life... Material life means birth, death, disease and old age, and spiritual life means relief from these botherations—no more birth, no more death, no more ignorance, no more misery.
So those who are intelligent, they do not try to elevate in any planet of this material world. There are higher planets. You have got. You get a long duration of life. Just like we are trying to reach the moon planet, and actually, if we get entrance into the moon planet... It is very difficult to get entrance. But even if you get entrance, then the period of life will be, I mean to say, enhanced. Of course, not in this body. Perhaps if you enter with this body, instant death is sure. But if you enter into higher planets by this yoga system, then you get the suitable body of that planet. Every planet has got a suitable body. You cannot enter... Just like you cannot live in the water with this body. You can make an experiment. You can live there, within water, say twenty-four hours or fifteen hours or sixteen hours. That's all. That's all. But the fish, the aquatic animals, they have got particular body. They are living whole life. Similarly, if you take out the fishes from water and put them on the land, oh, they will instantly die. As you see even in this planet that you have got to make your different kinds of body to live in a particular place, so similarly, if you want to enter into another planet, you have to prepare yourself to get that particular type of body.
So if anyone enters into the moon planet by this yogic process, he transfers his soul, transmigrates into the moon planet, he'll get long duration of life. In higher planets, our six months equal to their one day, and such one month, one year, for ten thousands of years they live. That is the description we get. So we get very long duration of life, undoubtedly. But there is death. There is death. After ten thousand years or twenty thousand years or millions of years... That doesn't matter. It is all counted, and death is there. But you are not subjected to the death. That is the beginning of Bhagavad-gītā. Na hanyate hanyamāne śarīre (BG 2.20). You are spirit soul. You are eternal. (aside:) You keep the watch here. You are eternal. Why should you subject yourself to this death and birth? This is intelligence. This is intelligence.
So kṛṣṇa yei bhaje sei baḍa catura: "Those who are persons in Kṛṣṇa consciousness, they are very intelligent." They are not interested to get promotion in any planet where there is death, never mind the long duration of life there is. They want, just like God, sac-cid-ānanda-vigraha. Īśvaraḥ paramaḥ kṛṣṇaḥ sac-cid-ānanda-vigrahaḥ (Bs. 5.1). The God's body is sac-cid, sac-cid-ānanda. Sat means eternal, and cit means full of knowledge, and ānanda means full of pleasure. We have got our pamphlet—most of you might have seen—Kṛṣṇa, the Reservoir of all Pleasure. Similarly, if we transfer our body, our self, leaving this body to the spiritual world, in the Kṛṣṇa planet, or any other spiritual planet, then we get the similar body, sac-cid-ānanda: eternal, full of knowledge and full of bliss.
So those who are trying to be in Kṛṣṇa consciousness, their aim of life is different than those who are trying to promote themselves in any of the better planet in this material world. So here Lord Kṛṣṇa says that mūrdhny ādhāya ātmanaḥ prāṇam āsthito yoga-dhāraṇām. This is called the perfection of yoga. If you can transfer yourself... You, you are very minute particle within this body. That you cannot see. But I am, my position is... This is external. This is external. So that is sustaining in the prāṇa-vāyu. And the yoga system, the ṣaṭ-cakra system, is to get the soul from down to the top, tip of the topmost part of the head. This practice go, go on, goes on while we are living, and the perfection is that when we can place my, myself on the top of the head, and by fracture of this topmost head we can transfer into the higher planet as we like. As we like. That is the perfection. A yogi can transfer in either of these planets, wherever he likes. Wherever he likes. So if you like... Just like you are inquisitive to see what is the moon planet, so if a yogi likes: "Oh, let me see what is the moon planet. Then I shall transfer myself to higher planets..." Just like travelers. They come to New York, then go to California, then go to Canada. Similarly, you can transfer yourself in so many planets by this yoga system. But anywhere you go the, the same system, visa system and customs system, there are. So Kṛṣṇa conscious persons, they are not interested in these temporary planets. May be for a long duration, but they are not interested.