There are three basic ingredients which combine to make up an astrological chart – planets, signs (or constellations of stars) and houses. The houses of the horoscope form one of its basic building blocks. Serving as the lens to focus and personalize the planetary blueprint, the houses bring the chart down to earth.
The Planets represent particular psychological urges, drives and motivations. The Constellations of stars in which a planet travels represent the qualities of being or attitude; and, the houses show specific areas of everyday experience through which the operations of the constellations and planets manifest.
For example, Mars in Taurus will assert itself in a slow and steady manner, but its placement by house determines the exact area of life in which this slow and steady action can most obviously be observed – whether it is in the person’s career, or in his relationships or at school, etc. Put very simply, the planets show what is happening, the signs show how it is happening and he houses show where it is happening.