The 12th Bhava house in a horoscope is a very interesting corner. In Indian astrology it is generally grouped in the category of inimical houses along with 6th and the 8th houses. However this should not be taken as bad on the face value of it.
12th signifies both confinement and release. Confinement can be in many ways. For example one may be confined in a jail, hospital, house arrest, Lunatic asylum, an ashram, or to a cave in the mountains etc.
Release is interpretive in the sense that a person passes away from this body and is released into space before being confined to another physical body.
Since 12th signifies release, shifting from one house to another, transfer from on place to another come under this house.
The 12th house is the farthest house from 1st house which is the self. So living in far off places (foreign residence) is also signified by the 12th house.
Death is the eternal sleep. So sleep and bedroom are signified by it. This is why Raahu in 12th gives disturbed sleep.
Since 12th is giving up, all losses are signified by 12th. It is not good to have Sun /Moon in 12th because it signifies early loss of Father/mother.
Jupiter transiting in 12th House of a horoscope is a warning for financial loss. Lagna lord in 12th gives health loss.
10th lord in 12th denotes jobless or frequently changing Job situation ( it is also an ava yoga called as the DUR Yoga) . A person with Dur yoga is unreliable, is looked down upon by others, miserable and lives in a foreign place.
5th lord in 12th House of a horoscope gives Aputra yoga or loss of children and no surviving child etc.
6th or 8th lord in 12th gives Vipareeta raja yoga (gains wealth unexpectedly). This is because 6th is 7th to 12th and 8th is 9th to 12th.
12th signifies highest of penance and meditational practices. Jupiter in 12th can make a self realized soul.
Sun in 12th can cause Loss of prestige. Saturn in 12th gives sound sleep.
Ketu in 12th gives Moksha or release from the bondage of repeated birth and death.
In the physical body 12th is the feet. Affliction of 12th causes affliction to feet.
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