In astrology, the twelve houses divide the birth chart into sectors representing different areas of life: 1st (self), 2nd (finances), 3rd (communication), 4th (home), 5th (creativity), 6th (health), 7th (partnerships), 8th (transformation), 9th (philosophy), 10th (career), 11th (community), and 12th (spirituality). Planets in a house emphasize that life area.