Communion.

Mark 14:22-24
22 As they were eating, Jesus took some bread and blessed it. Then he broke it in pieces and gave it to the disciples, saying, “Take it, for this is my body.”

23 And he took a cup of wine and gave thanks to God for it. He gave it to them, and they all drank from it. 24 And he said to them, “This is my blood, which confirms the covenant between God and his people. It is poured out as a sacrifice for many.

Continuing to talk about the church as a body of Christ, such a unification can be represented by having Communion. It is a repetitive event in the life of a Christian. It is meant to be a time where the church comes together, recalls, and celebrates what Christ has done for us.

Let's break communion down some more...
So why communion you ask? God asks us to do it, in turn we are to obey.
What should be done during communion? An examination of ourselves to see if we truly believe. Also, we need to remember Christ...his life, death, and resurrection.
What is the purpose of Communion? It is a statement of faith.
What does Communion symbolize? The Holy Spirit. It also shows how involved we are in the body of Christ - living a life centered around him.

Next time the body of Christ is broken for you and the blood of Christ is shed for you, remember why.

"If we but paused for a moment to consider attentively what takes place in this Sacrament, I am sure that the thought of Christ's love for us would transform the coldness of our hearts into a fire of love and gratitude." ~St. Angela of Foligno