"Behold, the Bridegroom is coming in the middle of the night, and blessed is the servant whom He shall find awake and watching, but unworthy is he whom He shall find idle and careless. Beware, then, my soul, lest thou be weighed down with sleep, lest thou be given up to death and shut out of the Kingdom. But awake and cry: Holy, Holy, Holy, art Thou, O God: through the intercessions of the Forerunner, save us. (Sung three times; The third ending is: through the Mother of God, have mercy on us)."
-Troparion for today
Fr. Schmemann's explanations on the ceremonies of Holy Week.