Mercury rules 10th and 1st house is in 5th house in Capricorn

Mercury in the 5th house of a horoscope has a major influence on a person's intellectual capacities and creativity. In Capricorn sign, Mercury can make an individual practical, logical, and systematic in their approach to creative projects.

This placement can make the native highly ambitious, as the 5th house represents higher education, children, romance, and creativity. They may also have a strong interest in language, communication, and writing.

Since Capricorn is an earth sign, Mercury in the 5th house can bring about practicality and structure to the native's creative endeavors. They may have a knack for business-minded creative projects and be able to turn their artistic pursuits into a profitable venture.

In terms of children, Capricorn is considered a dry sign, which may suggest that the native may face challenges in starting a family or may choose to wait until later in life. However, the presence of Mercury in this placement could also indicate that the individual views parenthood as a responsibility and takes it seriously.

Overall, this placement of Mercury can bring about great creativity, practical intelligence, and seriousness in the individual's approach to life.