It may seem strange call a memorial for the departed "joyful," but the Christian belief that lies behind this joy is the remembrance of Christ's Resurrection and the joy and hope it brings to all.
Because of the importance of the last few days of [[Holy Week]] and the joy of the Resurrection, the [[Typikon]] (''Ustav'') forbids the celebration of the [[Panikhida]] (memorial service) from [[
Holy Thursday|Great and Holy Thursday]] through [[Thomas Sunday]] (a period of eleven days). Therefore, the first opportunity after Pascha to remember the dead is on the second Monday of Pascha. However, because in Orthodox countries a number of [[monastery|monasteries]] follow the custom of fasting on Mondays, the feast is often celebrated on Tuesday, so that all may partake of the paschal foods (which are intentionally non-fasting).