This is what I understood from this movie and how I interpreted the metaphors.
Warning: Spoilers Ahead
First of all, Narnia is your heart. As in, each person's heart as an individual. And by heart I mean your spiritual side, whatever you call it.
At first, you're not even aware of your heart and spirit. (Before discovering Narnia) You, as an individual human being, have 4 aspects or characteristic traits: 1. Bravery and leadership (=Peter), 2. Wisdom and rationality (=Susan), 3. Ambition and egocentricity (=Edmund), 4. Kindness and innocence (=Lucy).
(Very much like the houses of Hogwarts) The first time Lucy discovers Narnia represents having a spiritual or religious experience and finding out about your heart. While other people or your other aspects try to deny it, because it's not logical and possible.
(Up to this point I thought the movie followed an existentialist view: because of the individualism and the idea of believing in the impossible for no reason. But then I found out about this:) The heart is taken over by evil (=white witch) and you need to take it back from her.
(Because there's no evil in existentialism, so I realized it's not the philosophical view of this movie) Aslan is God and he will help you take your heart back and be good, and he is the real and true king of hearts.
Ambition wants to go to the dark side to gain power if he's not controlled by your other aspects. At which point evil will kill him and destroy you and take over your heart forever.
But Aslan sacrifices himself for each individual heart, so that you will be saved and the heart can survive the attack of the evil forces.
(The writer has turned the story of "Jesus sacrificing himself for all of humanity to save everyone" which is a very collectivist idea, into "Aslan sacrificing himself for you to save your heart" which is an overwhelmingly individualist idea. Again, sounds a lot like existentialism.)
Warning: Spoilers Ahead
First of all, Narnia is your heart. As in, each person's heart as an individual. And by heart I mean your spiritual side, whatever you call it.
At first, you're not even aware of your heart and spirit. (Before discovering Narnia) You, as an individual human being, have 4 aspects or characteristic traits: 1. Bravery and leadership (=Peter), 2. Wisdom and rationality (=Susan), 3. Ambition and egocentricity (=Edmund), 4. Kindness and innocence (=Lucy).
(Very much like the houses of Hogwarts) The first time Lucy discovers Narnia represents having a spiritual or religious experience and finding out about your heart. While other people or your other aspects try to deny it, because it's not logical and possible.
(Up to this point I thought the movie followed an existentialist view: because of the individualism and the idea of believing in the impossible for no reason. But then I found out about this:) The heart is taken over by evil (=white witch) and you need to take it back from her.
(Because there's no evil in existentialism, so I realized it's not the philosophical view of this movie) Aslan is God and he will help you take your heart back and be good, and he is the real and true king of hearts.
Ambition wants to go to the dark side to gain power if he's not controlled by your other aspects. At which point evil will kill him and destroy you and take over your heart forever.
But Aslan sacrifices himself for each individual heart, so that you will be saved and the heart can survive the attack of the evil forces.
(The writer has turned the story of "Jesus sacrificing himself for all of humanity to save everyone" which is a very collectivist idea, into "Aslan sacrificing himself for you to save your heart" which is an overwhelmingly individualist idea. Again, sounds a lot like existentialism.)