For Christians, our every year has its origin and its climax at a time determined by the earth and the sun and the moon and the human-made cycle of a seven-day week. The marvelous accidents of earth's place and sun's place, of axis and orbit make cycles within human cycles so that days can be named and remembered and rhythms established.First, we wait for the angle of the earth's axis to make day and night equal (going toward longer days in the "top" half of earth, longer nights in the lower half). Then we wait for the moon to be full. Then we wait for the Lord's Day and call that particular Lord's Day "Easter" in English, but in most other Western languages some word that is closer to an old name, "Pesach" or "Pascha," made into English as "Passover."In these generations, we are finding out how, on the night between Saturday and that Sunday, the church ends and begins not just its year but its very self.We do not come to this night unaware. The church has spent the time since Thursday evening in intense preparation. Even more, we have had the 40 days of Lent to dear down and to build up toward this night.And the night needs a week of weeks, 50 days, afterward to unfold. The 50 days are Eastertime; only after Pentecost does life return to normal.The church came very early to keep something of the spring festival known to Jesus and the first followers. They were Jews and that first full moon of spring was Passover. For those who followed Jesus, whether Jew or Gentile, this was the time when the story of the deliverance they proclaimed in the death and resurrection of Christ was placed beside the story already told at this festival, the deliverance of the captive people from Pharaoh. Very early, that proclamation came to be made not in words alone but in the waters where those who were ready to stake everything on such a deliverance, on this Christ and this church, passed over in God's saving deed.- Gabe Huck in The Three Days: Parish Prayer in the Paschal Triduum