The twelve houses

If the signs say how, the houses say where. They are the twelve areas of life across which experience is distributed: identity, money, bonds, work, home, vocation… Each house is a concrete stage where one part of existence plays out, and the planets that fall in it show where a person's energy concentrates.

It helps to understand how they differ from the signs, because it is the most common confusion. The signs depend on the date and are the same for everyone born in the same period. The houses, by contrast, depend on the exact time and place of birth, and change throughout the day. That is why two people born on the same day but at different times have the same sign positions and yet completely different houses. This is why the birth time is indispensable for a complete chart.

What they are for: the houses bring the abstract down to the concrete. Knowing that someone has "Venus in Taurus" describes an affective style; knowing in addition that this Venus is in the house of vocation or of home says in which terrain of life that affection is lived. The house is the place where a function becomes experience.

The twelve, in one turn:

• House 1 — identity, the body, presence; how you arrive in the world.
• House 2 — your own resources, money, values, what you consider yours.
• House 3 — communication, learning, the near environment, siblings.
• House 4 — home, family, roots, the private world.
• House 5 — creativity, pleasure, play, children, romance.
• House 6 — everyday work, health, habits, service.
• House 7 — significant bonds: partner, associates, also open rivals.
• House 8 — transformation, what is shared in depth, what dies and is reborn.
• House 9 — philosophy, long journeys, the search for meaning, what widens the horizon.
• House 10 — vocation, public projection, what you build facing the world.
• House 11 — community, friends, collective projects, what is pursued over the long term.
• House 12 — retreat, the unconscious, what stays out of sight, the inner life.

How they are recognised in the chart: the houses are numbered 1 to 12 from the Ascendant and run in order. The four most visible —1, 4, 7 and 10— are called angular: a planet placed in them weighs more in the person's life and is read before the others. A house without planets is not "empty": it is interpreted through the sign on its cusp and the planet that rules that sign.

A precision: there are different systems for drawing the houses (Placidus, Whole Sign, Equal Houses, among others). The Ascendant —the degree rising over the horizon— is the same in all of them; what varies is where the intermediate houses begin, so a planet near a cusp may be read in one house or the next depending on the system. It is not an error: it is a difference of method, and each school chooses its own with good reason. AstroAtlas 3i calculates the chart with the Placidus system, one of the most used in Western astrology.

We now have the how (signs) and the where (houses). What is missing is the who: the functions that move across that map. Those are the planets.