Dan Burke explores the hidden battle for souls, revealing how demons subtly influence even the most devout through deception and illusion. Using St. Teresa of Avila’s The Interior Castle as a guide, he examines the seven stages of spiritual growth and the corresponding demonic tactics aimed at derailing progress. Through the wisdom of the saints, he uncovers how to discern authentic encounters with God, overcome dryness in prayer, and resist distractions, equipping the soul for the journey toward union with Christ.