Why prepare for temporary heaven when Krishna offers eternal return through simple devotional worship?Listen — Srila Prabhupada Uvaca
] ...very nicely, aparayam itas tu viddhi me prakrtim para jiva bhuta maha baho yayedam daryate jagat [Bg. 7.5] So how the material world is and how the soul is acting, utilizing this material world in different ways? It is said in the scripture that those who are promoted to the higher planetary system, say moon planet or other planet, they also again come down on this earthly planet. Kṣīṇe puṇye martya-lokaṁ viśanti [Bg. 9.21]. [audio back to normal] Huh, just like you get visa for going to a foreign country. As soon as the visa period is over, the visa department immediately reminds you: "Sir, your visa is finished.
Now you must go. You must go out." So the whole, the puṇya-loka, the higher planetary system, svarga-loka, you can go there by your pious activities, by performing big, big yajñas, puṇya, pious activities, go there. But kṣīṇe puṇye martya-lokaṁ viśanti. When your puṇya, it is also limited thing, when it is finished, you have to come back.
It is said that when they come back on this planet they come through the water, showers, and they fall down on this earth. Again they begin their life as grass and something like that, evolution. Kṣīṇe puṇye martya-lokaṁ viśanti. Therefore this elevation to the higher planetary system, Kṛṣṇa condemns them. Ābrahma-bhuvanāl lokāḥ punar āvartino 'rjuna [Bg. 8.16]. "My dear Arjuna, even if you go to the higher planetary system, Brahmaloka, to live for many millions of years, still, when your asset of pious activity will be finished, you'll have to come back here." So...
But He again said, mad-dhāma gatvā punar janma na vidyate, that "If you try to come back to My place, then you'll not come back." So the karmīs, karma-kāṇḍīya, they are trying to be elevated to the heavenly planet, higher planetary system. That is not very good idea. You can go to the higher planetary system by your pious activities. First of all the modern age, the people are so much impious, sinful, that is not also possible.
They may go down. Jaghanya-guṇa-vṛtti-sthā adho gacchanti tāmasāḥ. They are covered with ignorance. The ignorance is wine, women and meat-eating.
So they are going down. There is no possibility of going higher planetary system. Not possible. Who will go to the higher planetary system? Ūrdhvaṁ gacchanti sattva-sthāḥ [Bg. 14.18]. Ūrdhvam means higher.
Only those who are pious, they can be elevated. So even if you are pious, still you have to come back again. This is the process. So sarva-gataḥ. Sarva-gataḥ means a soul is free to go anywhere.