Easter is the celebration of one of the most important events in human history. The Resurrection of Jesus Christ was God's cosmic yes to all the teachings of Jesus. Jesus taught that he was the long promised Messiah of Deuteronomy 18.18 and Isaiah 52 - 54. He proved his authenticity by healing miracles and prophesying His own death and resurrection. Jesus taught that God was making a new Covenant of forgiveness. This Covenant offered forgiveness of sins through repentance and faith in Jesus sacrificial death. It did not replace but did supersede the Old Testament Covenant of Moses.
The night before He died Jesus gave us a new way to celebrate our New Covenant relationship with God. This is the Covenant we enter at Baptism and re-affirm by saying 'amen' after the Eucharistic Prayer. As preparation we all go through a formal Confession and Absolution. This is probably the most important part of the service. It gives us an opportunity to go through the process of briefly examining our lives and inserting personal things we have done or not done which have offended God or other people. The words of Absolution, given by the priest, are a prayer that God will honour the New Covenant of Jesus by forgiving us whatever we have personally repented. What we are celebrating in the Eucharist is our new way to forgiveness and reconciliation with God and other people.
We are continuing as witnesses to the Resurrection as a validation of the Covenant of Jesus.