People with the Moon in the 9th house are always striving to broaden their horizons, they love traveling and acquiring new knowledge.
The 9th house represents worldview, including religion, higher education, and long-distance travel. The Moon in the 9th house shows a person who is constantly aspiring somewhere. They are not a homebody. They constantly need to go somewhere, learn something, see something. There is so much interesting in the world and they want to experience it firsthand, see and feel it.
Such a person may have many moves in their life, they may move abroad or live far from their place of birth.
This person travels a lot, studies a lot, constantly upgrading their qualifications, but not always. But they are always interested in expanding their horizons and their worldview - they cannot be kept at home, their life is bustling. They need hikes, trips, new knowledge.
The owner of the Moon in the 9th house never loses hope for a better future, they have a positive outlook on life. Rich imagination.
The Moon, as the mother. May indicate a mother who traveled a lot, studied a lot, or the mother herself is a teacher. The mother may influence the choice of education. There may be idealization of the mother here, or a weakened connection with the mother.