C.S. Lewis, in "The Problem of Pain," argues that suffering is an inherent part of life and that any attempt to eliminate it would essentially mean stripping life of its meaning. He suggests that suffering is closely linked to the nature of existence and the gift of free will. Without the possibility of pain, the richness of life and the depth of human experience would vanish, leaving a hollow existence.

Thus, Lewis emphasizes that free will entails the risk of suffering, which is a fundamental aspect of being human. He challenges the notion that we can have a life devoid of pain while still experiencing the full spectrum of emotions and growth. Ultimately, he posits that suffering can lead to deeper understanding and compassion, making it an essential character of the human experience.