Looking towards the apse at the front of the church, the left sanctuary is located to the left of the main altar on the side of the building next to the school. Below the left sanctuary windows lies a small alcove with the statue of the Blessed Mother.
This window displays the Assumption of Mary into Heaven. Accounts of Mary and her assumption into Heaven have circulated since the 5th century. Pope Pius XII defined the Solemnity of the Assumption of the Blessed Virgin Mary on November 1, 1950 in his Apostolic Constitution Munificentissimus Deus.
It states, “By the authority of our Lord Jesus Christ, of the Blessed Apostles Peter and Paul, and by our own authority, we pronounce, declare, and define it to be a divinely revealed dogma: that the Immaculate Mother of God, the ever Virgin Mary, having completed the course of her earthly life, was assumed body and soul into heavenly glory.”
The solemnity is commonly celebrated on August 15th.
And if I go and prepare a place for you, I will come back again and take you to myself, so that where I am, you also may be.