The position of the Sun in 6th house for Lagna Pisces is a significant placement that can influence one's personality and overall life. Since this placement places the Sun in its mooltrikona state, it amplifies the effects even more.
As per Vedic astrology, the 6th house represents enemies, debt, diseases, and obstacles in life; it is ruled by Mercury. With Sun placed here as the lord of the 6th house, it implies that Pisces ascendant individuals would take care of their enemies and obstacles head-on. They are likely to face many challenges in their life but will be able to overcome them with their confidence and individuality.
The natural karaka (indicator) of Sun includes houses like 1st (self),10th (profession/career), etc. Thus, when placed in the 6th house for Pisces ascendant individuals, they would take care of their self-image/personality by dealing with challenges with an optimistic approach that portrays self-belief and strong individuality. They are also likely to have immense success in their professional life if they work hard and take up some unconventional career options.
Furthermore, Sun also aspects the 12th house from its position in the 6th house which implies that these natives could have a mixed experience related to expenses, foreign travel or settling abroad. It could mean higher expenses or debts while traveling abroad or settling there; alternatively it could also indicate an investment opportunity that could bring long term gains. The natives might need to be cautious with investments, especially when taking risks outside of their native region.
Overall this placement gives a mixed bag of fruits - on one hand it empowers natives to tackle any challenge head-on with unmatched confidence and individuality. But on other hand they may encounter frequent obstacles that can lead them into debt or difficulties while travelling/ settling abroad - saying this positively it may give an opportunity to learn how to manage expenses and invest prudently. If they plan it well, still there is immense possibility of success and growth in career or business; this placement certainly gives potential for Pisces ascendant individuals to rise above their competitors with sheer will power, confidence and innovative approach.
In conclusion, the position of the Sun in 6th house for Lagna Pisces is an important aspect that can significantly impact one's life. It provides natives with unique attributes that could give them a lead over others if utilized properly. It is important to note that all predictions should be seen through a holistic lens and considered with other planetary positions, dashas (time periods) and transits - this will give a comprehensive view on how this placement might shape one's future.