St. Teresa Of Avila 
The Wisdom of St. Teresa of Avila [EPUB ebook] 

A nun, Mary of St. Francis, left the following declaration: 'I know that our holy Mother wrote four books, the Life, the Way of Perfection, the Foundations, and the Mansions, which I have seen her writing. Once, while she was composing the last-named work, I entered to deliver a message, and found her so absorbed that she did not notice me; her face seemed quite illuminated and most beautiful. After having listened to me she said: "Sit down, my child, and let me write what our Lord has told me ere I forget it, " and she went on writing with great rapidity and without stopping.'