In the excellent book “Buddha’s Brain”, Rick Hanson presents the neural scientific evidence that there is no central place in the brain where a constant personality exists (p.208-214).

"But now, O Jacob, listen to the LORD who created you. O, Israel, the one who formed you says, 'Do not be afraid for I have ransomed you. I have called you by name; you are mine'" (Isaiah 43:1).

And no—it’s not because you're weak. It’s because you’ve forgotten who you are. That’s not a poetic exaggeration. That’s the central, burning truth the Bhagavad Gita reveals.