Sun in 12th

Meaning of 12th House
Activities associated with large institutions, especially hospitals, prisons and places of confinement, work behind the scenes, research, detective agencies, biomedical engineer, surgeon, chemist, FBI agent, researcher, psychiatric social worker, statistician, historian, inspector, psychoanalyst, x-ray technician. Associated with places of restriction, confinement, and privacy, areas for functioning behind the scenes out of the public eye, such as confidential work, crime detection, or research. Imprisonment and bondage, personal secrets, secret liaisons or negotiations, and anonymous philanthropy.
Meaning of 12 Sun by Vedic
Auspicious Results : One is victorious in battle and debates. Physical pain is removed. The person will be patient and blessed with a son. The native may get wealth from the king. One is extravagant and earns a good name in society and community.

Inauspicious Results : One is depressed, lazy, a foreign resident, lean bodied and enmical towards friends, a mental patient and having slanted eyes. The person might suffer from stomach and eye ailments, night blindness, weak vision and other diseases. There will be pain in the legs and body. There may be great physical agony. In the 36th year, one will suffer stomach ailments related to gas formation. Some part of the body may be deformed. One will be energetic and restless. One may be enmical towards one's maternal uncle and there may be problems from him. Journeys may bring harm. There may be a sudden loss of wealth during journeys. One may be irreligious and may go against the traditional family religion. One may be poor. One will fear the king, thieves and the government. One may wander around aimlessly. One will be very passionate and have relationships with the opposite sex. One may hunt birds for pleasure. One may have ailments of the thighs. One will oppose ordinary people. One may be the spouse of an infertile the opposite sex. One may have a lowly nature and be weak and small. One will be very short tempered, protector of the wicked, very extravagant, performer of good deeds and lacking in status.One spends money on the undeserving and deprives oneself of the comfort of a bed. One will be successful and victorious in old age.One will be hard working and fraudulent but may not attain success. 

You tend to be optimistic and confident, but overly so. You are  self-indulgent and over-extravagant. There is a  selfish streak  within you that sometimes keeps you from devoting yourself to  others. There  may be religious fanaticism here,  with a  closed-minded adherence  to one particular dogma. You do not have the best judgment at  times and  you promise more than you are capable  of delivering.   You display  false pride. You tend to exaggerate your stories or your own  abilities. You find it difficult to generate the necessary resolve to follow  through on completing the projects you start. You have big aspirations and the desire to succeed in life in a grand  way, but  you may  not have  the initiative or persistence to make it a reality.  But in  spite of  all this, you never seem to lose your hopes for the future.You may become restless and discontent  with the  responsibilities and limitations you have in life. At some point your faith will be  tested  to  see  just  how  strong it  is. You  may encounter  legal problems, especially with or through those in positions of  authority. You  need to ask yourself when does self-confidence become egotism? You want  to feel important and that can easily bring on an egotistical manner. You love to show yourself off and  make yourself  into someone  important. You are capable of gaudy displays of extravagance. You are wasteful of the energies and resources  that you  have been  entrusted with.   All actions should be carefully thought out, so that you do not experience severe losses  due to  overspeculation, loans,  investments, gambling, etc.   Social  prestige is  important to  you. You  may be  subject to circulation   problems   of   the   blood,  especially   the  arterial circulation. Living the "good life" can add extra pounds and  this can  contribute to health problems as well.   You need  to stay  active and keep exercising.

Ramendra Singh Bhadauria (Astrobhadauria)
 

There is the desire or the need to serve others in this  lifetime.  At times this is in direct conflict with a desire to seek seclusion  from the world and/or wallow in self-pity seeking sympathy and service from others.  This life may  be a  contemplative life  due to  the need  to reshape  negative  character  traits  from  past  lives.  You  have an awareness of the oneness  of life.   You may  lack confidence  in your abilities.   You  have  an  empathy  with  sick or  mentally disturbed people.  You may develop or have clairvoyant powers and an interest in occult  subjects  and psychic phenomena.  You  may enjoy  playing the martyr.