On November 1st (All Saints' Day) and November 2nd (All Souls' Day) , Poles visit cemeteries to light lanterns ( znicze ) and recite this prayer for their ancestors.
The prayer's imagery is derived from 2 Esdras (4 Esdras in the Vulgate), which speaks of a "shepherd" giving everlasting rest and "perpetual light" shining forever. wieczny_odpoczynek
It is recited by mourners at the graveside immediately before and after burial. On November 1st (All Saints' Day) and November
Some Protestant perspectives view "Eternal Rest" as the ultimate state of fulfillment and peace found only in God, where all worldly labor and struggle cease. Cultural Context in Poland wieczny_odpoczynek