Long regarded as Rev. Henri-Marie Boudon’s most influential work, Devotion to the Holy Angels calls the faithful to rediscover a vital and often neglected dimension of the spiritual life: the active presence and assistance of the angelic hosts. With clarity and spiritual authority, Boudon invites listeners to cultivate a deep devotion not only to guardian angels, but to all nine choirs of heaven.

First introduced to English readers in 1869, this work was widely praised for filling a significant void in spiritual literature. Its enduring appeal lies in its simplicity, theological soundness, and practical application. Boudon presents the angels as real and powerful allies—assigned by God to guide, protect, and defend souls against the forces that seek their destruction.

Drawing from his experience as a spiritual director, the author reveals the reality of spiritual warfare and the strategies of the enemy. He argues that neglect of the supernatural order weakens the soul, while devotion to the angels strengthens it. By calling upon these “Powers of Heaven,” the faithful are equipped with a formidable defense against temptation and sin.

This work ultimately calls for a renewed reverence for the sacred and a confident reliance on the angelic assistance God has provided. It is both a theological reminder and a practical guide for living with greater vigilance, humility, and trust.