One of the 10 major planets. Ruler of Leo. Vitality, will, the yang or male principle. Power, leadership, dignity, character, egoism, self-assertion, masculinity, "the heart's desire". < + > An authoritative nature with strong drives for recognition, fame, leadership and supremacy. Self-reliant and must rule or lead in all projects involved in. < - > Full of pride and arrogance, and always needs an audience for appreciation and applause. Egotistical and domineering. Those in authority, the head of state, the heart, male figures, e.g. the man himself, father, the husband in a woman`s chart. In the business chart: The house the sun occupies or rules represents a focus of the business and should be faced squarely in order for the business to succeed.