One of my favorite things about the church where I work is the depiction of the mysteries of the rosary in the windows. The Joyful Mysteries begin to the left of the sanctuary and progress to the back of the church. Then, on the other side, the Glorious Mysteries begin and proceed back to the sanctuary, so that the Coronation of Mary ends up opposite the Annunciation. The Sorrowful Mysteries appear as paintings on the ceiling, also proceeding to the sanctuary.
When the light is good, one can use the windows as meditations in praying the rosary in the same manner that one would make the Stations of the Cross.
Before Mass today, as my final preparation to preach on today's Gospel, I spent some time with the window of the Visitation:
Elizabeth's posture proclaims her words from St. Luke: how does this happen to me, that the mother of my Lord should come to me? Mary reaches out one hand in greeting, while the other is over her heart, where she kept all these things, reflecting on them. Poor Zechariah gestures in his muteness, and St. Joseph hangs back with his green halo. Anybody know why it's green?
One of my little dreams for the church is to tear up the awful carpeting and have the Luminous Mysteries put into the floor of the main aisle, opposite the Sorrowful Mysteries on the ceiling. It could be a nice mosaic or something. Because St. Anthony's altar and the old baptistery break up perfect evenness in the Joyful-Glorious layout, the Baptism of the Lord would end up in the floor right in between the Visitation pictured above and Pentecost:
Now this would be quite a lovely accident, because Jesus and John in the Baptism could parallel the postures of each other's mother in the Visitation window. John and Jesus would recapitulate their previous meeting in utero, except the other way around, accentuating the humility of the scene and the objection of John.
Then, the Holy Spirit that appears in the Baptism could parallel the radiant Dove in the Pentecost window. As you can see, I'm full of ideas on this fourth Sunday of Advent.