The Mariology of Saint John of the Cross

Saint John of the Cross is widely known for his spiritual writing. He is a Doctor of the Church, master of prayer, and expert of the spiritual life. His writings cover a wide range of subjects and themes, but John is seldom acknowledged for his teachings on the Blessed Virgin Mary. How is it that a man known for his spiritual wisdom, who devoted his entire life to achieving union with God in a religious order dedicated to living in imitation of Mary, is rarely recalled in relation to Our Lady?