So this nature is going on. When it is a daytime they are again coming out, and when there is nighttime they again all becomes merged into this water. Rātry-āgame avaśaḥ pārtha, prabhavaty ahar-āgame. Avaśaḥ. Avaśaḥ means, although they do not like devastation, the devastation will come and, I mean to say, overflood all this. And again, when the day also comes, again gradually the waters will disappear. Just like in this planet the three-fourth is covered with water, and gradually land is coming out. It takes times. And one day it will come when there will be no water, simply land. There will be no water. That is the process of nature. Paras tasmāt tu bhāvo 'nyaḥ. Paras tasmāt tu bhāvaḥ anyaḥ avyakto 'vyaktāt sanātanaḥ: (BG 8.20) "But My dear Arjuna, beyond this place of 'sometimes it is appearing, sometimes it is disappearing,' beyond this, there is another nature." Just take this information from Bhagavad-gītā. We cannot calculate what is the length and breadth of this universe, but there are millions and millions of universes like this within this material world. And above this material world there is another sky, which is called spiritual sky. And in that sky the planets are all eternal. And there life is eternal also.
Bhagavad-gita As It Is Lectures
In the previous verse it has been discussed, na hi kaścit kṣaṇam api jātu tiṣṭhaty akarma-kṛt. Nobody can... (child making sounds) Just like this child. He wants to do something. (laughter) He does not know that he is doing something nonsense. (devotee translates throughout) Similarly, the child's father also, he wants to do something although it is nonsense. Therefore, here it is mentioned, na hi kaścit, "Anyone," kṣaṇam api, "even for a moment," na hi kaścit kṣaṇam api jātu tiṣṭhaty akarma, "he must do something." This is the tendency. How? Kāryate hy avaśaḥ. Avaśaḥ means being forced. He has no control. He must do something and he has no control over it. So why no control? No control means he is controlled by somebody else. He is not in his own control. And what is that controller? Guṇaiḥ svābhāvikair balāt. He has infected some type of material modes of nature and he has to act accordingly. Prakṛteḥ kriyamāṇāni. The similar verse is there in the Bhagavad-gītā. Prakṛteḥ kriyamāṇāni guṇaiḥ karmāṇi sarvaśaḥ (BG 3.27).