Mars rules 5th and 12th house is in 4th house in Pisces
As a Jyotish astrologer, I can say that Mars in the 4th house in Pisces sign indicates a strong spiritual and emotional connection with one's home and family. This placement of Mars can make the native sensitive and intuitive towards their family members' needs and emotions.
However, this placement can also create a restless nature and a desire for change in the home environment. It can also create conflicts within the family due to Mars' aggressive and competitive nature. Therefore, the native needs to balance and channel the energy positively to avoid any adverse effects.
It is essential to take care of their mental and emotional health and connect with spirituality to find peace, stability, and emotional fulfillment in life. The native with this placement can also be successful in the fields of real estate, construction, and design.