Moon in 1st House : Vedic Astrology - GaneshaSpeaks Moon in First House/Ascendent : Vedic Astrology. The 1st house represents one's personality and temperament. If Moon is placed in the 1st house, you tend to become emotional and moody. Thus, these people are likely to be very sensitive, unpredictable and submissive. They are also concerned about what others think about them.