Stories can point beyond themselves
C. S. Lewis wrote Narnia as a fantasy world filled with talking animals, witches, battles and deep longing. Many readers notice echoes of Christian truth in its themes, especially in Aslan's love, sacrifice and victory. Those echoes can be meaningful, but Aslan is not Jesus, and Narnia is not a hidden extra book of the Bible.
That distinction matters. Scripture is God-breathed and equips God's people for faith and life, while a novel or film is a human work that may contain both insight and limitation (2 Timothy 3:16). Enjoying a story is not the same as treating it as spiritual authority.
All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness:
Use wise discernment
The Bible does not give a rule about Narnia, so the question is not simply, “Is fantasy allowed?” It is more personal and practical. What is this story doing in you? Does it stir your imagination towards courage, truth and self-giving love? Or does its magic, frightening scenes or spiritual imagery leave you unsettled, fascinated in an unhealthy way, or tempted towards beliefs that conflict with Christ?
Paul tells Christians to examine things carefully and hold on to what is good (1 Thessalonians 5:21). That is a useful approach here. You do not need to fear every fictional element, but you also do not need to switch off your judgement because a book is popular or carries Christian themes.
Prove all things; hold fast that which is good.
Let conscience have a real voice
Faithful Christians may come to different conclusions. One person may find the books spiritually encouraging, while another may prefer not to engage with fantasy or scenes of magic. Neither response automatically proves greater faith. Paul warns believers not to use their freedom carelessly in a way that harms another person's conscience (1 Corinthians 8:9).
Be honest before God. If you cannot enjoy the series with a clear conscience, don't force yourself because friends recommend it. Paul says that actions not done from faith are sin for the person acting against conscience (Romans 14:23). On the other hand, if you can receive it with gratitude and clear boundaries, you need not feel guilty.
Keep Christ at the centre
The best way to read or watch Narnia is with the Bible open in your life, not pushed to the side. Let the story send you back to the Gospels and to the real Jesus, rather than allowing a fictional character to replace him in your imagination. If a scene raises a question about evil, sacrifice or resurrection, look at what Scripture actually teaches.
You might also talk about it with a mature Christian friend, parent, or church leader, especially if you are watching with children. Paul gives a broad guide for ordinary choices: do them for God's glory (1 Corinthians 10:31). If Narnia can be enjoyed that way, it can be a worthwhile story. If not, it is completely fine to choose something else.
Whether therefore ye eat, or drink, or whatsoever ye do, do all to the glory of God.