What is Fantasy about?

I just had an interesting note from Lou Anders who was also wondering what this fantasy novel would be about (that I am about to start...but haven't started yet because I wonder the same thing).  I mentioned to him that I was worried because I feel like I don't do big scale politics, in the manner of say Juliet McKenna...but Lou said he thought that Fantasy really WAS politics. 

This put my cat in the pigeon basket, because my cold feet and lack of a first sentence is really down to one thing: