The twelfth house in astrology is our last and final house. Here again there are slight differences between the traditional and modern meanings for this house. While both point to a place where one finds himself alone and secluded, traditional descriptions tend to be much more austere and troublesome than modern definitions.
The 12th house is a cadent house and viewed as unlucky. It’s probably the most unfortunate house in the horoscope. Planets placed in the 12th house have little power to act; and they may act against the native. While modern astrology may try to lighten up its meaning by attributing spirituality, monasteries, and meditation to this house those things are better suited to the 9th house – the house of G/god.
The 12th house in astrology represents matters that are secret or hidden. It represents secret enemies and people who conspire against us. Hospitals, prisons, and institutions where one’s identity (and ego) become irrelevant belong to the 12th house. Sorrow, affliction, and our “self-undoing” are also attributed to this house.
In horary astrology the 12th house represents fears, phobias, secret enemies, sickness of the partner (6th from the 7th), siblings of the mother (3rd from the 10th), large animals, and hidden places.
In medical astrology the 12th house represents the feet. It is also associated with incapacity and ill-health.
In mundane astrology the 12th house represents spies, secret enemies of the state, charities, welfare, hospitals and intuitions.
Saturn finds its joy in the 12th house.