retrograde Mercury rules 2nd and 5th house is in 1st house in Taurus

If a person has retrograde Mercury in the 1st house in Taurus sign in their birth chart, it indicates that they may have a unique way of communication, which may not always be well-received by others. They may appear slow or lethargic when it comes to expressing themselves, but they are good at articulating their thoughts and ideas.

This placement of Mercury often gives the person a strong intuitive ability to assess the worth and value of people and things. They may have a practical and steady approach to life, and they often have a strong affinity for finance and wealth creation.

However, this position of Mercury may also cause some challenges in the person's life. They may have a tendency to be stubborn and inflexible in their opinions and ideas, which could lead to conflicts with others. They may also face some difficulties in expressing their emotions, leading to frustration and misunderstandings.

As a Jyotish astrologer, I would recommend that the person should work on developing their communication skills, particularly in expressing their emotions and feelings more clearly. Meditation and spiritual practices may also help them develop their intuition and reduce stress and anxiety.