This chapter introduces the Four Circles framework—Me, My Days, My Ties, and My World—as a practical map for organizing what research and lived experience suggest about happiness and well-being. Rather than treating well-being as the product of one dominant factor, the chapter shows how influences combine: personal dispositions and health, daily routines and time use, close relationships and belonging, and the wider material and cultural environment. It explains why findings can seem to conflict, noting that conclusions depend on what aspect of well-being is measured, which populations are studied, and how cultural and historical context shapes the meaning and pursuit of a good life. Across the chapter, the key takeaway is that well-being is systemic: the circles interact, trade off, and sometimes amplify one another through feedback loops over time. The Four Circles are offered as a clear, nontechnical way to keep the whole picture in view—helping readers connect evidence to everyday life and think more holistically about what supports (or undermines) a good life.