It is clear, simple, straight to the point, and, most importantly, I agree with this formula for happiness.
But, crucially, I would not have accepted this book a few years ago.
Like the 12 step program, this book requires faith, and like the 12 step program, I have met few if any who have successfully conquered their demons or accepted happiness without that faith.
Here I’m not talking about religion, but this book is. I reckon it could be read by anyone of faith and they could translate the message onto their particular beliefs.