Alexander Chee's 100 Things About a Novel, Part 1.
Writing a novel is sometimes like going to a party and hearing someone call your name outside the window and when you get there, a dragon floats in the night wind, grinning. How did you know my name, you ask it. But you already know it’s yours....
You do write because you have to write, in the end. You do it because it is easier to do than to not do. After all, a dragon has come all this way and it knows your name. And so families should try not to punish their writers.