http://ringofbrodgar.com/wiki/Ancestral_WorshipHow To Obtain "NP" (or Numen Points)?You have to build an ancestral shrine/have the "Ancestor Worship" skill. Then, go to your character sheet, and switch to the "Beliefs" tab. See where it says "The Ancestors"?

The first item (glass in the pic) it shows is what you get numen points for to use your prayers:

The second and third items (silk thread and pea pod in example pic above) do what that "Forfeit" button does: resets what your ancestors want. But if you already have numen,
pressing the 'Forfeit' button will cost half of that numen. That's what those second and third items are for: to forfeit without losing any numen.
Sidenote: No need to press the 'Forfeit' button after you make a secondary sacrifice. Its automatic
Also, if you are at full change, there is only a 30% chance per sacrifice that you will get +1 numen. Conversely, at full tradition you'll get +3 numen per sacrifice.
How to make a sacrifice: Find the desired item (again, glass in the example pic above) and "fuel" your ancestor shrine with it like you would a stick to a kiln. (Pick it up with cursor and right click on your shrine). It must be your shrine that you built yourself for it to work.
Hope this helps
