What does the lampost mean in the lion the witch and the wardrobe?

The lampost was one of the first things to grow in Narnia. It is also one of the first things Lucy sees when she enters the snowy barren forest. There is a lot of symbolism between Aslan and life, Lucy as a believer in Aslan, and the evil Witch that brings nothing but joyless barren snow. It all comes together throughout the series.