In this verse, Krishna draws a definitive boundary between the relative realms of manifest existence and the absolute state of transcendence. Even the highest celestial sphere, the abode of Brahma, which represents the pinnacle of temporal attainment and material longevity, is governed by the cyclical law of time and dissolution. By declaring these worlds 'subject to rebirth,' Krishna reveals that as long as the seeker dwells within the boundaries of the conditioned universe—no matter how subtle or divine the plane—they remain tethered to the movement of samsara, the wheel of birth and death. The exhaustion of one's accumulated merits eventually brings the soul back into the density of material embodiment, signifying that all achievements within the bounds of duality are ultimately transitory and finite. This serves as a sobering reminder to Arjuna that true liberation is not found in the mastery of worldly or even heavenly rewards, but in the transcendence of the manifest itself. Attaining Krishna (Mām upetya) means realizing one’s essential identity beyond the limitations of the ego and the cosmic hierarchy. When the consciousness shifts from identifying with the changing forms of the creation to the unchanging, eternal substratum—the Supreme Brahman or the Divine Person—the cycle of time loses its grip. Rebirth ceases because the seeker has transcended the causal conditions that necessitate embodiment. This state is not a destination in space, but a fundamental ontological shift—the dissolution of the 'separate self' into the Infinite, where there is no longer a 'birth' to occur.

True liberation is the transition from pursuing the temporary heights of conditioned existence to realizing the eternal nature of the Self, which alone dissolves the cycle of time and rebirth.