I can only find meanings of 12th House Scorpio in Western when I google it. Sort of frustrating. What does it mean to have Scorpio as your 12th House ruler?  

Hi,

Are you talking of Sayan or Nirayan Zodiac?

RishiRahul

dear,
to identify the result of Scorpion 12th house you have to make use of the characeristics of each individual canditates

some of the characteristics of scorpio are:
Element: water
Nature: female, even, Saumya , Stira
Type: crawlers or insect
Body Parts: left testicle
Abode: jungle, well water riverside, a hole, a cavity holes, poison,stone, place of hiding, ant hill, huge snakes
Direction: north
Items: sugarcane, whatever grows being watered , such as fruits of creepers, iron and goats' and sheep's wool ,iron and other kindred substances

The twelfth house deals with punishment, long journeys, Misfortune & bad habits ,Bed pleasure, Sleep, Meditation, Donation, Secret enemies, Heaven, Left eye and expenditure.

Note down the characteristics of the planets in the twelth house, consider rahi drishti and graha drishti in that house.

Find out where the Mars/Ketu(depending upon the strength) placed, conjoining planets, rashi drishti and graha drishti.

After combining all these factors you can predict overall result of 12th house.If you want specific result on specified area consider appropriate varga.

i think it may help you