St. Teresa of Avila's books are an integral part of the Spanish Renaissance literature as well as Christian mysticism and Christian meditation practices. The Interior Castle as written is widely considered to be one of the greatest works on spiritual development. This classic work attracts a new generation of St. Teresa of Avila readers. The Interior Castle is required reading for various college courses and curriculums and is enjoyed reading for many others. St. Teresa of Avila was canonized by Pope Gregory XV in 1622, forty years after her death. In 1970 St. Teresa was named a Doctor of the Church by Pope Paul VI. | Interior Castle by Saint Teresa of Avila, Hardcover | Indigo Chapters