sphere 06: existence
The sixth sphere expresses assimilation, the basic mechanics of life. It is concerned with work, daily life, service, and health. In terms of personal reality it equates to I analyze.
In occidental astrology the sixth sphere corresponds to the House of Health. It governs routine tasks and duties, skills or training acquired, jobs, employment, health and overall well-being, service performed for others, caretaking, pets and small domestic animals, and children.
The sixth house is ruled by the sign Virgo and the planet Mercury (or Chiron). The Latin dictum is valetudo (health).