This contribution explores the "faith" of the "others" from a sociological perspective, interpreting religious difference as a threshold rather than a boundary. Interreligious dialogue is understood as a space of encounter that fosters listening, suspends judgment, and highlights a shared search for meaning among believers from different traditions. Drawing on key sociological theories of religion, the study conceptualizes dialogue as a relational and symbolic process through which beliefs are constructed and renewed in pluralistic societies. Focusing on the urban context of Palermo, the empirical analysis examines how individuals perceive the faith of others, how dialogue transforms relationships, and what forms of proximity and connection emerge across traditions. The findings show that interreligious dialogue enables mutual understanding, values diversity as a resource, and opens new possibilities for coexistence in contemporary religiously plural societies. Keywords: Interreligious Dialogue; Palermo; Religious Pluralism; Qualitative Research; Sacred; Sociology of Religion.