A concise and precise retelling of the story of Teresa of Ahumada who became one of the world's most famous authors, reformer of an ancient religious Order, and a saint of the Catholic Church. With his expertise as the foremost Carmelite historian of the 20th century, Joachim Smet tells the story of Teresa's inspiration, her struggles, as well as her successes to reform the Carmelite Order. Her life continues to impact people to this day through her writings and those who follow her spirituality.