In Rome, rose petals would be dropped through the the circular “oculus” at the Pantheon (now a minor basilica called “Sancta Maria ad martyres”). The petals would fall to the crowd below reminiscent of the coming of the Holy Spirit like tongues of flame.
This beautiful custom takes place at the end of the Masses on Pentecost Sunday at St. John Cantius Church. Rose petals are dropped through the ciruclar opening of the transept of the church during the recessional hymn, “Come Holy Ghost.” Some are surprised while others wait expectantly for the rose petals to fall.
Visit this awe inspiring Church at their 12:30 PM Tridentine High Mass each Sunday of the year