The twelve houses represent different areas or segments of human development on our journey through life. The sign on the horizon at the time of birth determines where an individual’s chart begins. The ascendant (or rising) determines the basic overlay of the each house and the sign on the cusp.
The sign ruling each cusp will give a further indication of how the individual approaches that area of life. When a planet tenants a particular house its energy will be felt through the area of life that house corresponds to. Houses are each ruled by a particular sign and planet and although their interpretations are similar to the signs, the energy of the houses take on more of an external influence.