1,000 days

I just finished a book by Shannon Hale called "Book of a Thousand Days".  It's about a princess who refuses to marry the man her father wants her to marry. As her punishment she, along with her maid, are banished to live in a tower for 7 years. The guards around the tower are ordered to put an arrow through her if she escapes. 

The book is a journal, written by the maid who begins at "Day 1".

The title refers to a saying that the mother of the maid has told her:

"Mama used to say, you have to know someone a thousand days before you can glimpse her soul."

Guess what? ...two weeks after I glimpsed my fiance's soul, I married him.