Know how the positive and negative effects of the Moon and Mars conjunction in the 3rd house will affect your career, love, and marriage life. The brilliant Moon is a planet associated with dreams, intuition, and the subconscious. On the other side, bright red Mars is known as the star of activity, passion, and anger. Astrologers believe that when two planets share a house, their forces are typically perceived as enhancing one another, which makes any connected traits in a person more obvious.