The Way of Perfection (Spanish: Camino de Perfección) is a 1566 book and a method for making progress in the contemplative life written by St. Teresa of Ávila, the noted Discalced Carmelite nun for the members of the reformed monastery of the Order she had founded.
Teresa was a major figure of the Counter-Reformation in 16th-century Spain, and eventually was named a Doctor of the Church, while her work became a classic text in Christian spirituality and mysticism, especially in the realms of prayer in Christianity and Spanish Renaissance literature.
Teresa called this a "living book" and in it set out to teach her nuns how to progress through prayer and Christian meditation. She discusses the rationale for being a Carmelite, and the rest deals with the purpose of and approaches to spiritual life.
The title was inspired by the devotional book The Imitation of Christ, published in 1418, and had become a favourite expression of Teresa much before she wrote this work as it appeared at several places in her autobiography, The Life of Teresa of Jesus. Like her other books, The Way of Perfection was written on the advice of her counsellors to describe her experiences in prayer during the period when the Reformation was spreading through Europe. Herein she describes ways of attaining spiritual perfection through prayer and its four stages, as in meditation, quiet, repose of soul and finally perfect union with God, which she equates with rapture.
Over time, the book meant as spiritual instruction for her nuns offered her views on Christian theology and spiritual direction in a more direct and accessible way than her more famous works, like The Interior Castle and her autobiography.