We all know the reason for this season. Easter is going to be here really soon, but no one really pays attention to the "holiday before the holiday." Good Friday is (obviously) the Friday before Easter and is meant to commemorate the crucifixion of Jesus Christ.
One thing to remember is that the dates we use today are not exact representations of the true dates of the events. The dates we have chosen are there to give us a specific day to celebrate these great events in Christian and world history. These dates are the closest approximation to the actual date of the events.
Good Friday is the day we have set aside to commemorate the crucifixion of Jesus Christ. As the story goes, Jesus came to Earth, bore our sins, and died a horrific death to give us eternal life if we choose to follow him. After being sentenced to crucifixion, Christ carried his cross up Mount Calvary, was whipped and beaten almost to the brink of death, and hung on the cross. After uttering his final words "Tetelestai" or "It is finished," Christ died and was laid in a tomb in Jerusalem. On the third day, the stone was rolled away, and Jesus walked the Earth again. This is what we know as Easter.
Although it is hard to see what is so "good" about the day our Lord was crucified, we begin to understand why it would be considered such a holy day. Jesus Christ offered his life to come to Earth and die a death meant for mankind to save us. As stated in the quote by Randy Cater, "Good Friday is only good because of what happens on Sunday," Good Friday is good because Jesus rose on the third day. If Jesus had never risen, Good Friday wouldn't be so good.