This devotional guide invites readers to spend fifteen days in prayerful reflection with Madeleine Daniélou, a French Catholic educator and spiritual figure. Written in the spirit of the *Prier 15 jours* series, the book offers a concise path for meditation, drawing on Daniélou’s life, faith, and example as a source of inspiration for contemporary readers. Rather than presenting a conventional biography alone, it frames her story as a companion for prayer and discernment. Each day encourages attentive reading, quiet reflection, and a deeper awareness of how faith can shape action in daily life. The work is especially suited to readers interested in Catholic spirituality, women’s religious witness, and short guided devotional reading. With its compact format and accessible approach, this title serves as both an introduction to Madeleine Daniélou and a practical resource for those seeking a structured period of prayer.