Sun rules 8th house is in 12th house in Sagittarius

When Sun is placed in the 12th house in Sagittarius sign in a birth chart, it influences the individual's subconscious mind. The native has a strong desire to explore foreign lands and indulge in spiritual activities. They may possess great intuitive abilities and have an inclination towards mystical sciences.

The placement of Sun in the 12th house also indicates a possibility of the native having hidden enemies or facing obstacles in their undertakings. However, with strong willpower and perseverance, one can overcome these challenges.

This position of Sun also signifies that the individual may get involved in philanthropic activities and may have a compassionate nature. They may be inclined towards helping society and indulging in activities that benefit the greater good.

Overall, the placement of Sun in the 12th house in Sagittarius sign has its challenges, but if handled positively, it can provide the native with great spiritual growth and a deep sense of compassion towards others.