The essence
The 7th house begins at the Descendant, the point on the western horizon where the Sun, Moon and planets set each day. Greek astrologers called this angle the dusis, the setting place. It is one of the four angles that frame a chart, which makes the 7th an angular house with strong, visible effects. Its natural sign is Libra and its natural ruler is Venus, the planet of attraction, agreement and fair exchange.
If the 1st house says "I am," the 7th says "you and I." It covers marriage and committed partnership, contracts, lawsuits and negotiations. It also covers the professionals you hire to see what you can't, such as a lawyer, counselor or mediator. The common thread is formality and equality: a relationship you enter on agreed terms, with someone who has as much say as you do.
Planets here tend to show up through other people. Someone with Mars in the 7th may keep meeting assertive, quick-tempered partners before recognizing their own drive. This is the house of projection, where you often see in another person a quality you haven't yet claimed. It describes what you seek in partnership and the patterns you tend to repeat until you understand them.



