Isabel reflects on the saying that "the eyes are the window to the soul," which has become a cliché over time. She finds it fascinating that neuroscience is beginning to support such ancient beliefs. This shows a link between our perception of the soul and the biology of our brain, particularly in the realm of self-awareness.

Specifically, she learns that the ventromedial prefrontal cortex, a brain area linked to self-awareness, is situated behind the eyes. This suggests that our sense of identity and perhaps even the essence of our soul is closely tied to this part of the brain, reinforcing the idea that our inner selves can be understood through the way we perceive and communicate through our eyes.