How can you be happy in this world? You have a hole in your heart. You have a gateway inside you to lands beyond the world you know. They will call you, as you grow. There can never be a time when you forget them, when you are not, in your heart, questing after something you cannot have, something you cannot even properly imagine, the lack of which will spoil your sleep and your day and your life, until you close your eyes for the final time...
~ Neil Gaiman