Ok, the idea would be that it would be a new prayer used by numen points.
First, you would need to be FULL tradition. You would also need 50-100 numen points. Which would be hard to get to unless very well developed. Many things can't be gotten by any idiot that sees those things, and forfeiting would lower the number GREATLY. Then, if you were full peaceful, when you died, you would get the character back immediately, while you sacrifice the character performing this ritual. If you have done many (human) killings then you'd have to walk through a hell maze while your temporary hp slowly goes down to zero, after it reaches 0 it evens out and starts deducting your permanent HP, if you try and fail, you cannot do the ritual again. If you succeed, you still cannot resurrect again. This is like a one time thing to get your most valuable character back. If it would be too imbalanced just say so.
Questions, comments, concerns?