Hmmmm... Not sure exactly! It's not one of these books that's full of secrets or 'follow these steps 1 2 3...' but somehow it helps you see the reasons you started and why you continue, and why you no longer need to do it. I don't know. It's very powerful anyway, even though it's written by an ordinary bloke who talks plain. I guess it's one of those you have to read yourself, as no-one can seem to explain why it's worked for them!