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 this botheration—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 a 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.