Mechtilde of Holstein was a 13th-century German mystic and nun, known for her deep spiritual insights and writings. Born around 1241, she became a member of the Cistercian order and spent much of her life at the Cistercian convent in Neustadt. Her works reflect her profound experiences of divine love and contemplation. Mechtilde's most notable contribution is her book, "The Book of Special Grace," which details her mystical visions and teachings. She emphasized the importance of inner spirituality and the relationship between the soul and God. Her writings have influenced many in the realms of mysticism and spirituality.