Can religious leaders transcend centuries of division through shared prayer? In January 2005, an unprecedented gathering in Brussels brought together over one hundred imams and rabbis from thirty-four countries, united under the patronage of Belgium's King Albert II and Morocco's King Mohammed VI. Through participant observation, this research documents how the conference, organized by Hommes de Parole, worked to delegitimize religious violence and build bridges between Jewish and Muslim communities. While participants successfully crafted a declaration condemning violence in religion's name, the path to systemic change in Jewish-Muslim relations proved more complex. A spontaneous Sufi prayer workshop emerged as a pivotal moment, revealing how shared monotheistic traditions could transcend denominational boundaries while preserving religious authenticity. Though the immediate impact of such gatherings remains modest, they lay crucial groundwork for future interfaith cooperation and challenge long-held assumptions about religious exclusivity. These findings advance our understanding of contemporary interfaith dialogue approaches and illuminate the potential role of religious leadership in conflict resolution.