C.S. Lewis reflects on the concept of Hell as a mental state rather than a physical location, suggesting that individuals can trap themselves in their own minds, creating personal torment. This internal struggle leads to a cyclical experience of suffering, illustrating how one's mindset can transform their existence into a form of Hell. The idea emphasizes the importance of mental liberation and awareness.

In contrast, Lewis posits that Heaven is not merely a mental concept but a tangible reality. He describes Heaven as the essence of truth and fullness, asserting that what is genuinely real embodies the characteristics of Heaven. Furthermore, he suggests that everything subject to change will eventually crumble, leaving only what is stable and unshakeable, which represents true fulfillment and divine presence.