Synergy: The Healing Energy Guiding Stepped Care 2.0 is a hybrid text that explores the theory and practice of synergy as it relates to the Stepped Care 2.0 (SC2.0) model for mental health care. Building on the previous volumes in this series, Stepped Care 2.0: A Paradigm Shift in Mental Health Care, and, Stepped Care 2.0: The Power of Conundrums, this third book consists of a series of essays on synergy, the philosophical idea undergirding SC2.0. Drawing on a wide range of tools from the social sciences and humanities, these essays build an argument for why a holistic and restorative approach to mental health care should incorporate synergistic perspectives and practices arising from global traditions of Indigenous psychology. By blending theory, storytelling, and academic analysis, this book provides an answer to the questions raised in the previous volumes. Using what the editors identify as the Strands of Synergy, it also offers guidance for practitioners seeking to incorporate synergy into their own practice, both in the context of the SC2.0 model, and in the clinical world more generally.