Eternal rest
Requiem æternam
Eternal rest grant unto them, O Lord, and let perpetual light shine upon them. May they rest in peace. Amen. May their souls, and the souls of all the faithful departed, through the mercy of God, rest in peace. Amen.
In Latin
Réquiem ætérnam dona eis, Dómine, et lux perpétua lúceat eis. Requiéscant in pace. Amen.
When this prayer is prayed
At a death, at a grave, on hearing of an accident, on 2 November, and each time you pass a cemetery. The shortest complete act of charity available to the living.