My darling girl, when are you going to realize that being normal is not necessarily a virtue? It rather denotes a lack of courage." - Aunt Frances
When you start writing the magic comes when the characters seem to take on a life of their own and write the words for themselves.
What I like about fairy tales is the language and the matter-of-fact way of introducing magic, where it's accepted that a fox could talk or a gate could just appear in a wall. I think fairy tales are so psychological.