This book seeks to encourage and assist modern pilgrims to a more contemplative and intimate relationship with God through presenting and exploring St. Teresa of Avila's classic work, The "Interior Castle. As well as being a manual for spiritual direction, "Towards Mystical Union explores the relationship between depth psychology, contemplative prayer, and Christian mysticism. Julienne McLean is a practicing psychologist and Jungian analyst in North London. She teaches at Sarum College, Salisbury and is also a spiritual director.