Human is the only speaking animal. The use of symbols beyond the pure instinctive mechanisms involves a deception, because it is based on the use of traits through a widely accepted convention. Talking is therefore always left open the possibility of deceiving. The symbol, as a convention, slashing the edge of deceit: the speech is the negation of something specific. A non malicious lie, you could say; a lie beyond intention.
In my proposal for Actions on Christmas Eve, I have resorted to the tradition as the only element to be referenced as a demonstration of the selected day. Faced with a reality in the ongoing fragility of falsifiable material devices, I fled from these to take a particular Catholic tradition, the recitation of the Christmas verse.