Background on "Returned by Zalmoxis" (Getae trait)

[Morte66]

"This man was offered in his youth the honor of delivering his people's message to Zalmoxis, but the god rejected him and his impalement failed. Even though his family's position prevented his banishment from society, he is the last man to be trusted in this community.
-6 Influence, -3 to the morale of all troops on the battlefield"

Does mean what I think it means, i.e. that they impaled people for a religious purpose only this guy messed up and didn't die right?

I wonder how I'm going to work that into the AAR...