"The Interior Castle" (book)

"The Interior Castle" by St. Teresa of Ávila is a spiritual guide describing the soul's journey toward union with God. She metaphorically depicts the soul as a castle with multiple rooms, each representing different stages of spiritual growth. As individuals progress inward through these rooms, they deepen their faith, purification, and intimacy with divine love. The book emphasizes prayer, self-examination, and humility as essential steps in this transformative process, ultimately leading to a profound experience of divine presence and spiritual fulfillment. It remains a foundational text in Christian mysticism and contemplative practice.