Integral Christian Theurgy - A Practical Guide to Holiness - Tharen Mello This book is an invitation to God's work within you. Far from magical formulas, it offers a serious, clear, and human path for those who wish to order their inner life and walk towards holiness. By integrating theology, practice, and devotion, it guides the reader from the foundations of Trinitarian faith to the concrete discipline of prayer, symbols, and Christian rites lived with humility. In each chapter, the language is simple without being simplistic, restoring depth to what is essential: listening, discerning, and cooperating with grace. Here you will find guidance to create a sacred space at home, pray with sobriety, understand the presence of angels, purify the heart, and sustain a stable, peaceful, and fruitful life of faith. In continuity, this is a book on Christian Theurgy that offers secure foundations for daily devotional practice: a book on Practical Holiness, a book on Contemplative Prayer, and a book on Divine Invocation, illuminated by doctrine. It deepens the heavenly tradition as a book on Angelic Hierarchy and shapes inner judgment as a book on Spiritual Discernment. It also serves as a book on Spiritual Purification and a book on Spiritual Protection, bringing guidance on space and ritual as a book on the Home Oratory, always grounded in faith as a book on Trinitarian Theology. A cohesive guide to ordering the interior life, praying with sobriety, and cooperating with grace.