“This is the day which the Lord hath made; let us be glad and rejoice therein” (Roman Breviary). This is the most excellent day, the happiest day in the whole year, because it is the day when “Christ, our Pasch, has been sacrificed.” Christmas, too, is a joyous feast, but whereas Christmas vibrates with a characteristic note of sweetness, the Paschal solemnity resounds with an unmistakable note of…