Worldwide, Christians today celebrate the resurrection of Jesus three days after the Crucifixion. God showed that Jesus was His divine son and, in doing so, gave Christians a new birth. Many Christians will say that Easter Sunday is the most significant time of reflection.
There is a far broader theme of regeneration for us earthly mortals, no matter which faith moves you.
Maundy Thursday, though the ceremonial washing of others' feet, teaches us humility. We all serve one another. The greater our service for one another, the stronger our nourishment.
Good Friday teaches us loss. Traditional celebrations give way to a day of worship services, prayer and contemplative vigils. In some churches, groups recreate Jesus' procession to the Crucifixion by sharing the burden of actually carrying a cross. In today's vernacular, having "a cross to bear" continues to keep alive the belief that there is suffering before salvation.
Easter Sunday teaches rebirth. After 40 days of fasting, prayer and penance, Christians are born anew as the Gospels taught us of Jesus' resurrection.
While the literal story of Jesus' rebirth is retold in Christian churches and homes around the world today, its lessons are for each of us to consider as individuals. Change transforms oneself, and in turn, our surrounding world. Enlightenment is the universal destination.
Easter has a fun element as well. Egg hunts and bunnies are all part of the celebration. (And please don't get kids live rabbits as Easter gifts. It's a novelty that won't last beyond what's fair for the animal.)
But like all important holidays and customs, the deeper meanings of Holy Week are what truly shape us.