This volume gathers the papers presented at the 2002 Carême conferences held at Notre‑Dame de Paris. Father Joseph‑Marie Verlinde examines how contemporary forms of religiosity challenge traditional Christian belief and practice. Drawing on examples from modern French society, the author argues that Christianity must adapt its witness to a world in which religious expression is increasingly pluralistic and fluid. The essays explore theological, pastoral, and cultural dimensions of this shift, offering insights for scholars, clergy, and lay readers interested in the evolving landscape of faith in the twenty‑first century.