Book excerpt: In this third edition of his bestselling classic, the legendary personal coach offers brand-new tools and techniques for unlocking your life’s purpose. Purpose is an active expression of our values and our compassion for others—it makes us want to get up in the morning and add value to the world. The Power of Purpose details a graceful, practical, and ultimately spiritual process for making it central to your life. This completely revised and updated edition will help you bring a sense of purpose to everything you do. In addition to new stories, examples, and resources, this third edition features four new chapters. “Purpose across the Ages” looks at how purpose can evolve during our lives. “The 24-Hour Purpose Retreat” includes seven mind-opening questions to help you unlock your purpose. “The Purpose Checkup” offers a new tool for periodically evaluating the health of your purpose. And in “Can Science Explain Purpose?” we learn what researchers are discovering about how purpose can improve our health, healing, happiness, longevity, and productivity