How the ideas or claims of Lewis are developed and refined by particular sentences, paragraph or large portions of a text in the book?
This is a thematic question. The book is largely a Christian allegory. Lewis was clearly influenced by his Christian beliefs when he wrote this story, though it can also be read as a simple tale of human growth. The stories of the Passion of Christ and the Resurrection of Christ are reflected in the character of the lion Aslan, who is the son of the deified Emperor-Beyond-the-Sea. Aslan arrives in Narnia to save it from the White Witch. His decision to allow himself to be killed by the witch in Edmund's place echoes Christ's willingness to die for the sins of mankind. Both Christ and Aslan walk to their deaths filled with a heavy sadness, fearful of the pain and the suffering that they are about to endure, and struggle to maintain their faith that they will indeed be brought back to life. In a scene recalling the crucifixion of Christ, Aslan is tied down to the Stone Table and slain with a knife. After some time, Aslan returns to life, and is more magnificent than ever. His resurrection inspires wonder in Susan and Lucy, who both witnessed his death.
http://www.gradesaver.com/the-lion-the-witch-and-the-wardrobe/study-guide/themes
