This study examines the internalization of Sundanese local wisdom in shaping a tolerant worldview among the multi-religious community of Kampung Palalangon, Cianjur. The study focuses on three cultural values, namely silih asah, silih asih, and silih asuh, as social mechanisms that sustain interreligious harmony between Muslim and Christian residents. This research employed a qualitative approach through field observation, interviews with community and religious figures, and literature study. The data were analyzed descriptively and interpretively by organizing the findings into themes of mutual learning, social solidarity, protection, and interreligious harmony. The findings show that silih asah is internalized through reciprocal learning in daily livelihood practices, silih asih through affective solidarity, sharing, and respectful interaction, and silih asuh through collective protection when one religious group experiences stigma or potential conflict. These findings imply that tolerance in Palalangon is not merely passive coexistence, but an active cultural practice based on reciprocity, equality, care, and shared responsibility. The originality of this study lies in its explanation of the Palalangon model as a community-based form of active tolerance, in which Sundanese local wisdom operates as a practical foundation for religious moderation, social cohesion, and inclusive social development.