The window presents the scriptural event of the Holy Spirit descending as “tongues like flames of fire” upon all the apostles and other believers gathered together—a total of about 120 people (not just three apostles as shown in image) on the day of Pentecost. This event is recorded in the Book of the Acts of the Apostles, Chapter 2, as reads: “When the day of Pentecost had come, they were all together in one place. And suddenly a sound came from heaven like the rush of a mighty wind, and it filled all the house where they were sitting. And there appeared to them tongues as of fire, distributed and resting on each one of them. 4 And they were all filled with the Holy Spirit and began to speak in other tongues, as the Spirit gave them utterance.”
The sheaf of wheat in the small top section of the window as well as in other windows of the church, symbolizes the Eucharist. Jesus called himself the “bread of life” (John 6:35) and at the Last Supper, he took bread and said, “This is my body”. Jesus also used the analogy: “Unless a grain of wheat falls to the ground and dies, it remains just a grain of wheat; but if it dies, it produces much fruit” (John 12:24) to describe his death and resurrection, which brings eternal life to many.