Mercury rules 1st and 4th house is in 8th house in Capricorn

Mercury in the 8th house in Capricorn sign indicates that an individual may have a very curious and inquisitive mind when it comes to secretive matters or taboo subjects. They have a deep interest in the occult, mysticism, and other hidden subjects.

This placement suggests that the native may keep their thoughts and emotions hidden from others, and they may have a difficult time expressing themselves in intimate relationships. They tend to be very secretive and private individuals.

However, Mercury in the 8th house also gives the individual the ability to delve deeply into complex matters and to grasp the details and nuances of various subjects. They possess a sharp intellect, and they possess the ability to uncover hidden information.

Overall, this placement suggests that the individual may find success in fields related to research, analysis, and investigation. The person may also have a strong interest in spirituality, and may explore various spiritual practices in order to deepen their understanding of themselves and the world around them.