What most people would understand to be the official beginning of Mass is the Sign of the Cross, something all Catholics are taught to do from as early an age as possible. Interestingly enough, almost no other Protestant denomination makes the Sign of the Cross, even while they may begin “In the Name of the Father and of the Son and of the Holy Spirit.” When we trace the Cross upon ourselves and invoke the Father, Son, and Holy Spirit, we proclaim that: We belong to the Trinity, the God we are about to worship.We have been redeemed through the Cross of Christ.We enter this liturgy not as individuals, but as baptized members of His Body. The Sign of the Cross draws a clear boundary: what follows is holy. It marks the moment when we step from the ordinary into the sacred — from daily life into divine worship. Just as the priest and people crossed the threshold of the church to enter the building, the Sign of the Cross marks the spiritual threshold into God’s presence. Our physical act of tracing the Cross on our bodies reminds us that we are bodily creatures and the Cross is meant to be something we fully embrace by way of suffering and acts of self-denial, for it is through the Cross that salvation comes to us. Following the Sign of the Cross is the first dialogue between the priest and the people: “The Lord be with you.” “And with your spirit.” We find phrases similar to these in the Old Testament whenever God was about to give someone a mission that was much bigger than they could handle. We even see this in the Gospel of Luke when Gabriel comes to visit Mary: “Hail, full of grace, the Lord is with you…” From there he told her that she would bear God’s own Son in her womb - a much bigger mission than she could handle, but God’s grace and presence with her could bring it to completion. When the priest says, “The Lord be with you,” there is an acknowledgment that we are entering into a mystery that is much bigger than we can understand: our own mystical participation in the Paschal Mystery and heavenly worship. God’s grace and presence is necessary for us to understand and fully engage our worship of Him. Your response to the priest, “And with your spirit,” is an acknowledgment that God has given the priest a much bigger mission than he can naturally carry out, but God’s grace and presence in his core makes it all possible to be fulfilled. God’s grace makes the priest capable of acting in the Person of Christ as he leads everyone in heavenly worship on earth. Incredible! Just as with the Sign of the Cross, a gesture is included with the words. The priest extends his hands as he speaks to the people, as though saying to them, “I’m here for you, with you.” Remember, the priest is acting in the person of Jesus, and the dialogue is meant to be a dialogue of love. For the priest to say, “The Lord be with you,” is really for Jesus to be speaking through him in love. As a little note, the Roman Missal doesn’t list the people as extending their hands in return while they say, “And with your spirit,” so there is no need for you to do so.