We just learned in the previous section that from the highest planet of Lord Brahmā to the lowest (ā-brahma-bhuvanāl lokāḥ) in this material world, all are places where repeated birth and death (punar āvartino) take place. But (tu), on reaching Krishna (mām upetya), one is never born again (punar janma na vidyate). (BG 8.16) Not only do we go through repeated birth and death, the planets in this material world also go through periodic creation and annihilation.

For how long does this material world exist? It exists for the duration of a day of Lord Brahma (BG 8.18), which is 1000 times the cycle of 4 millennia (sahasra-yuga-paryantam). (BG 8.17) Upon a simple calculation, this comes out to be 4.32 billion years. At the beginning of Lord Brahma’s day, all the planets (sarvāḥ) become manifest (vyaktayaḥ) from the unmanifest state (avyaktād), and thereafter, when his night of the same duration (rātriṁ yuga-sahasrāntāṁ) as the day (BG 8.17) begins (rātry-āgame), the living entities are merged into the unmanifest state (pralīyante). (BG 8.18) Again and again (bhūtvā bhūtvā), the collection of living entities (bhūta-grāmaḥ) along with these planets surely (sa evāyaṁ) come into being at the beginning of Brahma’s day (prabhavaty ahar-āgame), and with the arrival of Brahmā’s night, they are helplessly (avaśaḥ) annihilated (pralīyate). (BG 8.19)

But (tu), transcendental (paras) to all these (tasmāt) manifest and unmanifest (avyaktāt) is another (bhāvo anyo) eternal (sanātanaḥ) unmanifest (avyaktaḥ), which is not annihilated (na vinaśyati) when all in this world (sarveṣu bhūteṣu) is annihilated (naśyatsu). (BG 8.20) It is said (ity uktas) that this unmanifest (avyakto) and imperishable (akṣara), known as (tam āhuḥ) the supreme destination (paramāṁ gatim) is Krishna’s transcendental abode (tad dhāma paramaṁ mama). Once having reached that place (yaṁ prāpya), one never returns to this world (na nivartante). (BG 8.21) Recall the usage of the word, akṣaraṁ, to mean the indestructible Brahman (BG 8.3), the indestructible destination (BG 8.11), and the indestructible oṁ (BG 8.13) in the previous section. The supreme destination is again being referred to as akṣara.

Can we go there? Certainly. It is possible (labhyas) only (tu) by exclusive (ananyayā) devotion (bhaktyā) to the Supreme (paraḥ) Personality (puruṣaḥ), Lord Krishna, who is presiding over His transcendental abode (tad dhāma paramaṁ mama). While He resides in His abode, at the same time, He is all-pervading (yena sarvam idaṁ tatam) and everything is situated within Him (yasyāntaḥ-sthāni bhūtāni). (BG 8.22) This point will be further elaborated in Chapter 9.

It is clear now that this material world is like our vacation home, which is temporary, but we have a real home, Krishna’s transcendental and eternal abode, where we really belong. We should aspire to go there by the process of exclusive devotional service to Krishna.