Mercury rules 4th and 7th house is in 12th house in Aquarius
Having Mercury in the 12th house in Aquarius sign is an interesting placement from a Jyotish astrology perspective. The 12th house is related to loss, expenses, and foreign travels, and Mercury is associated with communication, intellect, and business.
This placement indicates that the native may have a strong inclination towards spirituality and mystical knowledge. They may also possess unique and innovative ideas, and they are likely to be quite progressive in their thinking. However, they may encounter difficulties in expressing themselves and communicating their ideas to others.
The placement of Mercury in the 12th house often signifies some hidden enemies or obstacles, which may create challenges for the native in their life journey. It may also suggest some issues related to finances and expenses, where the native needs to be careful and avoid unnecessary expenditures.
The position of Mercury in Aquarius sign may give the native a rational and objective approach towards life, and they may be inclined towards social service and humanitarian causes. They may have a desire to work for the welfare of society and may be interested in progressive and unconventional ideas.
Overall, this placement indicates that the native may face some struggles in their life, but with a positive and practical approach, they can overcome them and achieve success in their chosen field.