Seat of Wisdom
Mary is called "Seat of Wisdom" because she bore the Son of God, Who is eternal Wisdom. The Dominican Rhineland mystics of the 14th century (Johannes Tauler, Henry Suso, and Meister Eckhart) had a great devotion to Mary under this title, and also a devotion to Wisdom as personified in the book called Wisdom of Solomon--a book in the Bible that is considered canonical by Catholics and Orthodox believers. Henry Suso especially saw Wisdom as a high-born lady--the kind of lady a knight would want to fight for and praise in song.
"O chosen Beloved of God, you beautiful golden Throne of eternal Wisdom, allow me, a poor sinner, to speak with you a bit about my shortcomings. My soul prostrates itself before you with modest eyes, with blushing countenance, and with eyes cast down. O Mother of all grace, I somehow feel that neither my soul nor any other sinful soul needs any permission or any intercessor with you. You are a direct intercessor for all sinners. The more sinful a soul is, the more rightfully it thinks that it may approach you. The more wrong it has done, the more rightfully it it crowds forward in front of you. And so, my soul, go forward freely. If your great wrongdoing drives you away, her boundless kindness invites you." --from Little Book of Eternal Wisdom by Blessed Henry Suso, OP
Mary, Seat of Wisdom, let us approach you without fear, no matter how much we have sinned. Let us turn to you for guidance and strength, that we may gain true wisdom of heart. Help us to fix our eyes on your only Son, to listen to His voice, and to follow His laws with loving joy.