One of the most ancient practices of Christians exhibiting their faith has been the Sign of the Cross.
Traditionally, Catholics will open and end prayer with the Sign of the Cross.
It has been shown in movies at a critical point in a person's life, we see sports figures do the Sign of the Cross before and after a huge play.
The Sign of the Cross is a prayer in and of itself which recognizes the Holy Trinity. Jesus died on the Cross and that has become the sign of our redemption.
Jesus redeems mankind and Christians internalize the Sign of the Cross in this outward sign.
At the Gospel, we place the Sign of the Cross on our forehead, our lips and our hearts.
Our minds think the truth, our mouths speak the truth, and our hearts love the truth.
The cross reminds us the physical way of the Paschal Mystery. We celebrate the death and Resurrection of Jesus Christ.
The Cross is a sign of victory over death.