The Interior Castle is considered St. Teresa of Avila's masterpiece. She wrote this last work in just a few months in 1577, five years before her death. At this point in her life she had been granted the highest mystical graces; this book is the fruit of her lived experience and a deep-felt praise of God for it. More than a book, The Interior Castle is a powerful image of the mystery of the human person. It is, in a very real sense, Teresa's soul. Using the image of a castle, Teresa describes the soul's progressive inner journey through seven dwelling places, until finally reaching the center where, now transformed, it is united with God. Reading the works of Teresa herself is indispensable. This second edition has been completely redesigned as a springboard to reading and understanding Teresa's text. The book presents a chapter of The Interior Castle itself, followed by a review of the development of her thought and the principal ideas in each chapter. Interpretive notes after each chapter cover doctrine, history, and sociology. Expanded questions for reflection and/ or discussion conclude each chapter. A glossary of terms offers definitions as well as their specific and sometimes unique meaning in Teresa's writings. Comprehensive indexes of key themes and figures, castle imagery, and biblical references make this volume an indispensable reference resource. With its combination of Teresa's text and modern commentary and notes, The Interior Castle Study Edition demonstrates how Teresa's basic concepts and principles of the spiritual life reflect the church's theological tradition. It also will help contemporary readers to apply these perennially rich teachings to our lives today.