On Pentecost, it is a custom to release rose petals from the ceiling to represent the coming of the Holy Spirit.
In the city of Rome, but also in other places of the world, the feast of Pentecost is called "Rose Sunday."
The Catholic Encyclopedia explains the history of this custom.
The most famous church that continues this tradition is the Church of St. Mary and All Martyrs (also known as the Pantheon) in Rome.
It is said that this tradition dates back to 609. It occurs at the conclusion of Mass on Pentecost Sunday.
The custom is a beautiful way to celebrate the coming of the Holy Spirit, and many who have witnessed it say the church is filled with the scent of roses.
