Ask anyone who studies communication and they will tell you that “non-verbal communication” is important. One theorist (Albert Mehrabian) thinks that non verbals comprise up to 93% of the component parts of all personally communicated messages. Hand gestures and tone of voice are key, as well as facial expression and body posture. Similarly, in the written word, “non-verbals” such as rhythm and tone function to add to the meaning of a text. Of course all of these non-verbals are connected to one message which the communicator is trying to get across. 
One can think of the Sacraments as God’s “non-verbal” communication. They are always attached to verbal communication of God’s Word. That is why we don’t ever have communion without saying “On night in which our Lord Jesus Christ was betrayed . . .” or “Baptizing them in the Name of the Father, and of the Son, and of the Holy Spirit,” but the non-verbals of water, and of bread & wine, communicate to us as well.
When the verbal communication of God’s Word of Scripture and the non-verbal communication of God’s Sacrament are put together, we have grace communicated to us with utter clarity. We believe that these Sacraments, namely Baptism and the Body and Blood of Jesus Christ offered us in His Supper, are God’s clear “means of grace” through which He does important work of saving and forgiving.