The enigmatic religious journey of Aimé Pallière (1873-1949) challenges conventional notions of faith and conversion. Though he preached for twenty-five years at Paris's Liberal Temple, his death in a Catholic abbey and burial in a Catholic cemetery sparked questions about his true spiritual allegiance. Yet biographical analysis and correspondence reveal that these final choices represented neither conversion nor betrayal, but rather the culmination of a deliberately dual spiritual path. After a transformative encounter with Judaism during Yom Kippur services in Lyon at age seventeen, Pallière - then destined for Catholic priesthood - began corresponding with Rabbi Elijah Benamozegh of Leghorn. The rabbi's counsel to embrace Noachide laws rather than formally convert to Judaism enabled Pallière to maintain meaningful connections to both faiths while serving as what he termed "a witness of God." His final Yom Kippur observance in 1949, celebrated with disciple Roger Rebstock at the abbey, demonstrated unwavering commitment to Jewish practice until death. Pallière thus achieved his distinctive mission as an interfaith bridge, exemplifying how dual religious commitment could exist within Noachide tradition.