House 6 concerns the organization of daily life: habits, day-to-day work, service given or received, learning through concrete experience — and, traditionally, health.
A planet located there often influences your relationship to routine, organization, or the way you take care of your body.
Cadent house (with Houses 3, 9, and 12): associated in classical doctrine with adaptation and adjustment — House 6 comes after the strong angle of the Midheaven (House 10, counting from the preceding angle in the order of the zodiac) and tempers its energy through concrete work.
Natural sign and ruler: Virgo, ruler Mercury — consistent with the theme: Virgo is itself the sign of methodical analysis and service. See the Virgo entry.
Planetary joy: Mars finds its joy in House 6 (Hellenistic doctrine) — effort and concrete daily action are considered favorable ground there for this planet, despite the sometimes difficult reputation associated with this house (illness, imposed labor) in some older texts.