Sun the king, Moon the queen
The Sun (Surya) is the king — the soul (atma), authority, vitality, being seen. Steady and central, he burns whatever stands too close. The Moon (Chandra) is the queen — the mind (manas), emotion, nurture, the public. Fastest of the nine, she makes no light of her own; she receives and reflects.
Sun strong: you command a room. Moon strong: you read one.
Mars executes, never negotiates
Mars (Mangala) is the commander — raw energy, courage, conflict, the will to cut. He solves problems by force: surgery, sport, siege. Where Mars stands in a chart, you fight, compete, or bleed. Give him a mission or he will invent an enemy.
The same blade is a soldier's sword or a surgeon's scalpel — Mars supplies the cut, not the cause.
Mercury takes the color of company
Mercury (Budha) is the prince — intellect, speech, wit, trade, the youngest at court. Adaptable to a fault, he takes the color of whoever he stands with: benefic among benefics, malefic among malefics. Hold onto that trait — it becomes a working rule in the lessons ahead.
Mercury beside Jupiter talks philosophy; Mercury beside Mars talks lawsuits.
Jupiter and Venus, rival gurus
Jupiter (Guru, Brihaspati) is the minister-priest — wisdom, expansion, children, fortune, the teacher who blesses. Venus (Shukra) is equally a preceptor, but of the rival court: love, beauty, luxury, the arts, diplomacy. Two counselors, two curricula — one teaches what is right, the other what is delightful.
In myth, Brihaspati advises the devas; Shukracharya advises the asuras. Both are called guru.
Saturn pays late and pays permanently
Saturn (Shani) is the servant — labor, discipline, time, delay, endurance. Slowest of the seven visible grahas, he honors every debt but honors it late. What Saturn gives, he gives permanently; what he withholds, he is teaching you to earn.
Jupiter hands you the prize. Saturn makes you deserve it first.
Rahu and Ketu speak through their dispositor
Rahu, the north node, is obsession — amplification, foreign things, rule-breaking hunger. Ketu, the south node, is detachment — the pull toward moksha (liberation), what you have already mastered and released. Points, not bodies, they own no signs; they act largely through the lord of the sign they occupy — their dispositor.
Rahu in Aries hungers the way its lord Mars fights. The dispositor sets the style.
The one idea to keep
Nine characters, nine agendas
Every rule and calculation ahead rests on these personalities. Before you compute anything, ask who is acting and what that character wants. A Saturn problem and a Mars problem can sit in the same house — they will never have the same solution.