What happens when Christianity is not merely believed-but lived?

Before Mere Christianity became one of the most influential Christian books of the twentieth century, its author was a reluctant convert-brilliant, wounded, skeptical, and resistant to God. C. S. Lewis did not arrive at faith easily, nor did he accept it sentimentally. He argued his way toward belief, resisted it fiercely, and finally surrendered to what he once called "the most dejected and reluctant conversion in all England."

This book begins there.

Mere Christianity, Fully Lived invites readers into a 40-day journey that brings Lewis's ideas down into daily obedience. Drawing from his early life, intellectual struggles, personal losses, wartime broadcasts, and enduring writings, this devotional does not merely explain Christianity-it trains the reader to practice it.

Many readers admire Mere Christianity yet struggle to apply it. Some find it profound but abstract. Others praise its clarity while wishing it spoke more directly to the pressures of modern life. This devotional responds to those long-standing tensions by doing what Lewis himself believed faith must do: move from reason to action, from conviction to character.

Each day combines: