Pentecost is a major feast day in the Church. Celebrated on the Sunday that falls on the 50th day of Easter, it commemorates the descent of the Holy Spirit on the Apostles and other disciples following the Crucifixion, Resurrection, and Ascension of Jesus Christ (Acts 2), and it marks the beginning of the Church’s mission to the world. Pentecost is quite simply the birth of the Church. Celebrate this wondrous event by invoking the Holy Spirit with a beautiful banner for your parish.