At the end of its Constitution on the Church, the Second Vatican Council left us a very beautiful meditation on Mary Most Holy. Let me just recall the words referring to the mystery we celebrate today: "the immaculate Virgin preserved free from all stain of original sin, was taken up body and soul into heavenly glory, when her earthly life was over, and exalted by the Lord as Queen over all things" (no. 59). Then towards the end, there is: "the Mother of Jesus in the glory which she possesses in body and soul in heaven is the image and the beginning of the church as it is to be perfected in the world to come. Likewise, she shines forth on earth, until the day of the Lord shall come" (no. 68).
From: http://w2.vatican.va/content/francesco/en/homilies/2013/documents/papa-francesco_20130815_omelia-assunzione.html
From: http://w2.vatican.va/content/francesco/en/homilies/2013/documents/papa-francesco_20130815_omelia-assunzione.html