The Sign of the Cross as Parenthesis
The Cross is the symbol of the Christian faith: when we see a cross, we remember the Paschal Mystery, we remember how God became man and died and rose for us so that we could be raised to eternal life with Him, to be "partakers of the divine nature" (2 Pt 1:4). While seeing or meditating on a cross, or especially a crucifix, is one way to bring to mind the Paschal Mystery, the most common way we do so is through the Sign of the Cross. When we mark ourselves with the Sign of the Cross, we remember that "we were buried therefore with Him by baptism into death, so that as Christ was raised from the dead by the glory of the Father, we too might walk in newness of life" (Rom 6:4). (As a sidebar before going further, each lung of the Church has a different method of making the Sign of the Cross, and each has its own symbolism. In the West, the hand is open when crossing oneself: the five fingers spread out represent the five wounds of Christ. In the East, the thumb...