St. Teresa of Avila
St. Teresa of Avila is celebrated today by the Catholic Church. She was a reformer of the Carmelites, a mystic, and later recognized as a Doctor of the Church. Very much like us, she struggled with sin and yet never gave up her pursuit of holiness.
Her writings in "The Interior Castle" were a favorite among some of the charismatic protestants I had known and a former pastor had spoken of her from time to time. I am not quite sure how her acceptance of illness and suffering would have jived with modern-day charismatic healing theology, but obviously something in her writings rang true for some of us.