To Stephen Samuels for the countless hours of instruction in meditative practices, the informative and at times life-changing conversations, and the decades of friendship.

To my agent, Michael Snell, for believing in me and this project through all the curves in the road.

To Ellen Kadin of AMACOM for choosing to publish this book and for being in my corner every step of the way.

To my development editor, Ellen Coleman, for your willingness to remain open-minded while discussing different points of view, for your extraordinary editing ability, and for confronting me with questions like what is energy.

To AMACOM associate editor, Erika Spelman, for your kind guidance and expertise.

To Martine Marie for the fabulous suggestions that ...

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