Ours is a mind of repentance and mourning illuminated by joy. The fathers teach us to say “All will be saved, and I alone will be condemned.” When asked who crucified Christ, the proper response is “I did.” When one of the fathers was asked who the sheep are and who are the goats, he replied “I am one of the goats, but as for the sheep, God alone knows who they are.” Our Lord has said to us, “When you have done all that is commanded you, say ‘We are useless servants; we have only done what was our duty.” In the Gregorian Rite, the communicants say with the Roman officer, “Lord, I am not worthy that Thou shouldst come under my roof, but speak the word only, and my soul shall be healed.”
And yet, it is healing. We also say “O death, where is thy sting? O Hades, where is thy victory? Christ is risen, and you are annihilated. Christ is risen, and the demons have fallen.” Fr. Silouan of Athos says, “Keep your mind in Hell and despair not.” This is a difficult balance, and is an area of discernment. Remember your sins, and be humble and aware of your helplessness without Our Lord, but do not despair (which is a passion), and let nothing rob you of His Glorious Resurrection, which the enemy is always trying to do.
— Catechetical Letter 4/16/05