J.K. Rowling randomly got the idea for Harry Potter while riding alone one night on a train to London in 1990. She began writing the first book that night and, seven years later, got it published. In the meantime, she lost her mother to multiple sclerosis - an event which only increased her connection to and emotional investment into orphan Harry Potter. She also got married and had a daughter, and even while teaching (and of course parenting) full-time, she was able to finish the book that - unbeknownst to her - would change the world. I think we all know how the story goes from there.
Here's a link to an article from Christianity Today that I really enjoyed. The author (John Granger - no pun intended) has a smart and unique perspective on the genius of Rowling as well as the lasting power of the series.
To all the writers: we could take a page out of Rowling's book (literally).
To all the Harry Potter fans: mischief managed. ;)
<3 Mrs. G