To give you a better answer, there are two types of death in Planeshift, "Common death" , and "True Death" aka Permadeath.
With common death, the character fades from view and reappears in the death realm - fully alive and healed/restored.
With true death, the body remains and needs to be hauled off to a burial well ( such as the howling well on bdroad1 ) for proper disposal. They do not return.
This is a concept that applies to both role play and the game settings. True death can be cause via various poisons, annihilation of the body, or when smote by a god. Its generally up to the player to decide if he wants true death. There was one case that I know of where a player was forcible permakilled by Laanx due to consequences of his role play. There was another a where a character (Donari) was permakilled after an in-character trial due to rp consequences.
Whisper Bless,
Rigwyn