Kohlar performing the Plea for the Dead (2377).
The Plea for the Dead is a Klingon prayer said at mid-day to honor the sacrifices of their ancestors. Accordingly, the dead can not rest in Sto-Vo-Kor if the living do not honor their memory.
As a child B'Elanna Torres said the prayer for her grandmother L'Naan. (VOY: "Prophecy")