Chapter 8, Verse 2. Chapter 8, Verse 3. The Supreme Lord said, The indestructible, transcendental living entity is called Brahman, and his eternal nature is called the self. Action pertaining to the development of these material bodies is called karma, or fruitive activities. Chapter 8, Verse 4.
Physical nature is known to be endlessly mutable.
The universe is the cosmic form of the Supreme Lord, and I am that Lord represented as the Supersoul, dwelling in the heart of every embodied being. Chapter 8, Verse 5. And whoever, at the time of death, quits his body, remembering Me alone, at once attains My nature. Of this there is no doubt. Chapter 8, Verse 6.