Also known as Saint Teresa of Jesus, she was born on March 28, 1515 in Avila, Spain. She entered the Carmelite Convent in 1535. She developed her love for mental prayer when her health failed and she became invalid for three years. In 1555, she underwent a religious awakening and in 1558, she considered the restoration of the Carmelite life.
She is one of the mystics of the Catholic Church and an author of spiritual classics. The Carmelite Reform also originated from her. She was eventually elevated to doctor of the Church in 1970.