Today is the feast day of Whitsun, also known as Pentecost. It is one of the summer moveable feasts.

Whitsun is celebrated on the seventh Sunday after Easter, and it commemorates the Holy Spirit descending on the Apostles and Christ’s followers at Pentecost:

“When the day of Pentecost came, they were all together in one place. Suddenly a sound like the blowing of a violent wind came from heaven and filled the whole house where they were sitting. They saw what seemed to be tongues of fire that separated and came to rest on each of them. All of them were filled with the Holy Spirit and began to speak in other tongues as the Spirit enabled them.