Today is Pentecost, and I choose this painting of El Greco, showing the flames coming down on the disciples' heads. Mary, mother of Jesus, is in the center, recognizable on her red dress and blue cloak. This day, when the Holy Spirit was given to the followers of Christ, is known as the birthday of the Christian church. The Holy Spirit gave the disciples the ability to talk in different languages, so that everybody could understand.
It was painted between 1596 and 1600, and it can be seen at the Prado Museum in Madrid.