One of the main themes she illustrated throughout the story was how a little white lie of omission can affect those around you and yourself. It can eat away at your peace of mind, and those that are 'helping' keep your secret. Even when your reason to not tell the truth seems legitimate.
On a side note I read the digital copy I received of this book on my iPhone, and it was nice to have it with me to read wherever I was. Not that it took me long to read (even with my two distractions at home), LOL. I downloaded the file onto a flash drive then opened the file through iTunes to sink up with my iPhone, and it worked like a charm. I love it when technology works like it should.