The greatest lesson that I got from this enlightening book, was that, you can only wholly depend on God, and God alone, because human are infallible towards making errors. They will disappoint you at some time in your life, but God will never forsake you at all times. Even when you've forgotten God in your happier times, He is always there for you, welcoming you to come to Him, and talk to Him.
In God alone, I believe. I have a new personal resolution, and let it be known to none others but only, God.