The Way of Perfection ( El Camino de Perfección ) is one of the most celebrated works by Saint Teresa of Avila , a Carmelite nun and mystic who lived in the 16th century. As a Doctor of the Church, she played a significant role in the reform of the Carmelite order and is renowned for her deep spirituality, profound writings, and enduring influence on Christian mysticism. Saint Teresa of Avila (1515-1582) also known as T eresa of Jesus , was a Spanish mystic, writer, reformer of the Carmelite order, and one of the most influential figures in the history of Christian spirituality. Translated and edited, by Edgar Allison Peers from the critical edition of P. Silverio de Santa Teresa.