I read Perkins' Shapeshifting book over the Summer and he went over much of what we learned-- the importance of shifting stories, shifting dreams, even the power of shifting form on a molecular level.
His personal transformation story was an inspirational shapeshift on its own: after working as a highlevel corporate operative with all kinds of exposure to crooked practices and access to world leaders, he then chose to turn his back on the world of international finance and reveal its dirty secrets.
His story also touches on one of the apprenticeship's tenets--the absolute necessity of reintroducing the wisdom of primal cultures into the West. He is as convinced as I am that our survival as a species may depend on it.
Go here for more info on John's work.