Sister houses in astrology have corresponding ideas that work in balance to each other.
- The first house is who I am, the seventh house is who I enjoy.
- The second house is all my things, the eighth house is all my thoughts.
- The third house is my study notes and texts, the ninth house is my essay and my scrapbook.
- The fourth house is what I bring to the family, the tenth house is what I bring to the world.
- The fifth house is what I bring to myself, the eleventh house is what I bring to my communities.
- The sixth house is my health and how I serve society, the twelfth house is my worries and how I withdraw from it.