ABSTRACT
Lewis's writing covers a wide variety of Christian topics. Some are works that set out to defend the Christian faith, a form of writing known as "apologetics". He begins Mere Christianity by arguing that it is rational to have a religious belief. From the start of the book, Lewis argues that there is a universal moral law that governs human nature. Lewis says that the human ability to reason allows us to make a rational claim for the existence of this moral law, despite the fact that it cannot be proved through scientific inquiry. He looks at how Christianity differs from other religions and from philosophies like theism or pantheism. Lewis argues that the heart of Christian belief lies in human relationships, the interior moral life, and the end goal of life in relationship with God. He brought together logic, humor, metaphor, imagination, and myth to an exploration of the essence of faith.
