Abyssals use this to trap the man's soul inside his body so they can go on torturing him after he's dead. This is one of the spells valued by mortificers as the victim's soul doesn't pass while they're being tortured. Some fasten their victims with soulsteel nails while assembling their creations. Abyssals have shown such a mastery of torture that people's souls escaped only because there was no body left for the to inhabit.
Some have so much disregard for the etiquette of respect for the dead that they've become notorious. Far from being frightened by an enemy's vengeful ghost they relish the chance of a victim coming back to haunt them. It gives them a chance to kill them all over again.
