**Prier 15 jours avec Silouane** is a concise devotional guide inviting readers to spend fifteen days in reflection with the spiritual witness of Silouan, the Athonite monk revered in Orthodox Christian tradition. Presented as part of a prayer-focused series, the book offers short meditations intended to support daily spiritual reading, contemplative practice, and deeper attention to the Christian life. The text centers on themes closely associated with Silouan’s teaching: humility, love for others, repentance, compassion, and the pursuit of union with God through prayer. Its format is designed for accessible use over a two-week period, making it suitable for readers seeking a structured introduction to Orthodox spirituality or for those already familiar with the tradition who want a focused period of reflection. Written by Michel Maxime Egger, the book presents Silouan’s spiritual legacy in a pastoral and meditative style, emphasizing the transformation of the heart through persistent prayer and openness to divine grace.