Ūrdhvaṁ gacchanti sattva-sthā, those who are situated in brahminical qualification, goodness, modes of goodness, they are promoted to the higher planetary system. You are, at the modern times, they are trying to go to the higher planetary system by the machine. It is not possible. But if you place yourself in the modes of goodness, you can go to any higher planetary system up to Brahmaloka. Ūrdhvaṁ gacchanti sattva-sthā (BG 14.18).
There are three planetary system, triloki: the higher planetary system, the middle planetary system and the lower planetary system. So we are at the present moment Bhūrloka, Bhūrloka, middle planetary system. Above this there is Bhuvarloka. Above that there is Svarloka, there is Janaloka, there is Tapoloka, there is Maharloka, there is Satyaloka, there is Siddhaloka, there is Brahmaloka.
What do they know, the modern astronomers? They do not know anything. They do not know what is there in the moon planet, they do not know what is there in the sun planet, in the Venus—nothing. Still they are going on, they are proud. But if you read Vedas, you get all the information of the universe. Not only this universe—beyond the universe. Beyond the universe. Paras tasmāt tu bhāvo 'nyo 'vyakto 'vyaktāt sanātanaḥ (BG 8.20). There is another nature, which is never annihilated.
In this material nature, everything is annihilated. Bhūtvā bhūtvā pralīyate (BG 8.19). Here, just like your body is produced at a certain date by the father and mother, and it will be finished at a certain date, similarly, this whole cosmic manifestation, this material world, innumerable universes, they have been produced at a certain date and they will be finished at a certain date. Everything will be finished.
But there is another nature, where the planets are everlasting. They are called Vaikuṇṭhaloka. Vaikuṇṭhaloka, vaikuṇṭha means vigata-kuṇṭha yasmāt. Kuṇṭha means anxiety. Here we are full of anxieties—"What will happen next?" Fearful always. "When my death will take place?" "What will be the political situation?" "What shall I eat?" "Where shall I sleep?"
Always full of anxieties. Anyone—bird, beast, animal, human being—full of anxieties, because the material world is like that. You have to be full of anxieties. But there is another world, where there is no anxiety. That is called Vaikuṇṭhaloka. Vaikuṇṭha. Vaikuṇṭha means vigata-kuṇṭha; kuṇṭha means anxiety.