Sto-Vo-Kor

Sto-Vo-Kor is the Klingon afterlife that is reserved for the honored dead where they can fight eternal battles against great enemies. The gates to Sto-Vo-Kor are said to be guarded by Kahless the Unforgettable.

Klingons can gain access to Sto-Vo-Kor by dying in honourable battle or die while performing an honorable deed. It is also possible to gain access to Sto-Vo-Kor after a person dies by another performing such a deed and dedicating it to the deceased. 

After Hasalt requested an honorable death to get into Sto-Vo-Kor, Jonathan Masters refused and promised only dishonour after Hasalt died. (Other Knights: : "There's No Angels Here")