In this article I explore how a ‘belonging’ perspective can contribute to anthropological reflections on subjectivity and agency. On the basis of two ethnographic cases from Vietnam, I show how people tend to find their bearings in existentially difficult situations by placing themselves within concrete communities of others. Distinguishing between intersubjective, territorial, and political forms of belonging, I discuss anthropological approaches to belonging practices, highlighting the shared analytical assumptions that have underpinned anthropological use of the concept. By placing mutuality and responsiveness at the center of attention, I show that a belonging perspective can help us to think more carefully about the complex ways in which freedom and constraint intertwine in human lives.