The purpose of the chapter is to explore the role of spiritual well-being in the workplace as a critical component of ethical responsibility and sustainability. This chapter examines how fostering spiritual values among employees contributes to long-term ecological balance, individual fulfillment, and organizational integrity. In this chapter, we try to link spiritual well-being, ethics, and sustainability, grounded in Polish empirical data in a CEE context, as a crucial component of the current workplace situation. The background for the chapter is that modern workplaces face growing challenges related to burnout, lack of purpose, and alienation, all of which negatively impact human and environmental systems. Integrating spiritual well-being is no longer a marginal issue but an ethical necessity. Through a human-centered approach, organizations can create cultures that prioritize empathy, mindfulness, and interconnectedness—principles aligned with ecological sustainability and Sustainable Development Goals (SDG). Methodology and its variety were planned to deeply understand the role of spiritual well-being in the workplace. This chapter is based on quantitative and qualitative primary and secondary research data, a literature review done according to PRISMA methodology, desk research, and selected case studies from diverse cultural and economic contexts. Data collection includes interviews and organizational analyses that emphasize the role of leadership, employee engagement, and values-driven governance in promoting sustainable ecologies through inner development in Poland, as a good example of a Central European developing country. Visual tools (tables, charts, and conceptual models) are used to illustrate the frameworks and findings. The results highlight that workplaces that consciously cultivate spiritual well-being practices—such as reflective spaces, ethical training, or value-based leadership—report improved well-being, collaboration, and innovation in sustainability strategies. Spirituality at work acts as a catalyst for ecological awareness and systemic change. Practical implications are relevant for HR departments, ethical leaders, sustainability officers, and policymakers. The chapter provides a roadmap for integrating spiritual development into sustainability agendas, offering tools and perspectives useful in navigating ecological and organizational transitions.