This concluding chapter synthesizes the key contributions of the book, which collectively position well-being as a transformative and structural pillar of education across the lifespan. Building on the introductory chapter’s conceptualization of well-being as a human right and relational construct, this final chapter revisits each part of the volume—ranging from foundational theory to school education, adolescence, higher education, and the well-being of educators—to distill lessons, innovations, and challenges for educational systems. It highlights how well-being must be embedded in policy, pedagogy, and institutional design, calling for a shift from performance-driven models to ecosystems of human flourishingFlourishing. The chapter also acknowledges limitations, including the need for broader global representation and longitudinal evidence. Future directions are outlined, emphasizing the co-construction of culturally responsive indicators, interdisciplinary collaboration, and advocacy. This chapter affirms that prioritizing well-being is both a pedagogical necessity and a societal responsibility for building equitable and sustainable education systems.