Moon in 1st house in Astrology makes a person loner like the 12th house. This position, however, makes a person think very logically. Every move is calculated, and they do not tend to be very emotional unless being aspected by Mars in cancer, as in a Capricorn ascendant. Moon in the 1st house in Vedic Astrology makes a person restless but a good business-minded individual. But usually ruins the relationship with the mother if in the enemy sign.
The 1st House in Astrology rules body and personality. Most astrologers will say it rules the majority of a person’s life and its luck as well, but it’s not true. The luck, career and wealth factor is ruled by other houses. However, it's the foundation of your life, so a weak foundation will make other planets a little wobbly sitting in a house. But, may people have bad ascendants, but due to other planetary positions they come out quite well.
The first house in Vedic Astrology represents the birth itself, becoming an individual. It represents life overall, the self, and the whole body. Whatever influences the first house will impact the entire life, the personality, the body, and the complexion. Events happening during and shortly after birth also belong to the 1st house.
Physically, the 1st house corresponds to the 1st part of our body, the head in general_ and the skull and brain in particular.
The correspondence with Mesha (Aries) adds physical mobility and overall strength. You have the Lagna lord in this house; therefore, it is an important house.
Moon in Astrology shows the way you think and react to the situation. How emotional or unemotional you are depending upon the condition of the Moon. The Moon is also a watery planet, as it controls the sign of Cancer. The Moon controls the government. Since it is not as strong as the Sun, it represents our local or state government versus the federal government.
Moon in Vedic Astrology represents your mother, or motherly figures, your emotional response to your environment, and your imagination since the Moon is your mind. The Moon shows the way you think and react to the situation. A good moon in your horoscope or birth chart in astrology will make the following things benefic or auspicious, i.e., your relationship with your mother and your mind will be calm & you will be a creative being. If the moon is unfavourably placed in your horoscope, then it may ruin the relationship with your mother.
Read more about Moon in Vedic Astrology.
Note: The degree of auspiciousness and inauspiciousness will depend upon a complete analysis of the horoscope (birth-chart).