This book.

It crawls under your skin. It touches you in your heart and soul so deep, you find new depths. It nests itself there and is there to stay.

Every human being has to read this book. It teaches you life.
It teaches how one bad thought doesn't make you a bad person.
It teaches how there is no pure good and no pure evil.
It teaches you how to handle the guilt you feel when someone close to you dies.

This book is more intense than I thought a book could be, but it is amazing.

Thanks for recommending this to me Evelyn! I owe you one.