Why were the eight primary Jewish celebrations so important to the ancient Jews? How are these celebrations similar to Christian celebrations? How are they different?

Each of the celebrations represented various ways the Israelites were to remember the relationship they were to have with God and the many ways God had always taken care of them. In like manner for tge Christian, the celebrations of Christmas, Easter, baptism and communion are time that we use to celebrate our relationship with God and His deliverance of our lives.