Nightingale by Hans Christian Andersen

It is a fairytale about appreciating what you have, and what is real, instead of being duped by materialism. The emperor of China hears about a nightingale in his garden, and when it later sings for him, it is trapped. Eventually, it manages to escape from its prison, and is hence exiled by the emperor.

Then, an artificial nightingale is singing in the palace, but there is a big difference between what is alive and real, and what is not. Later, the emperor needs the nightingale. Something makes him realize the worth of a living being. The fairytale is beautiful and have an important message.