The feast, 50 days after EasterThe feast that celebrates the resurrection of Jesus on the 3^rd day after his death on the cross. This means that Jesus lives on despite his death. This feast is celebrated on the 1^st Sunday after the 1^st full moon of spring., which celebrates the descent of the Holy SpiritThe active power of God in people. It inspires people to make God present in the world. Jesus was 'filled with the Holy Spirit' and thus showed in his speech and actions what God is like. People who allow the Holy Spirit to work in them also speak and act like God and Jesus at those moments. See also 'Pentecost'.. This refers to the story from the Acts of the ApostlesA book from the New Testament that the evangelist Luke wrote as a sequel to his Gospel. In it he describes the early period of the young Church after the death of Jesus with Peter and Paul as the central figures. in which, after the death of Jesus, the disciples experience how the Holy Spirit shows itself in the form of flaming tongues. As a result, they come out of their seclusion and begin to preach in the languages of their hearers. In fact, this is how the beginning of the Church is celebrated.