@drwalt Great question. Although I might rephrase the question to “most influential” or “most significant” mystics since the Reformation, if we use the date 1517 for the Reformation, I think we could suggest the following: Teresa of Avila, John of the Cross, Blaise Pascal, Madame Guyon, George Fox, Evelyn Underhill, Archimandrite Sophrony, Howard Thurman, and more.