In Vedic astrology, the planets are the sources of energy. They are the "doers." The Sun represents the soul and authority; the Moon represents the mind and emotions; Mars represents energy and aggression; Mercury represents intellect and communication; Jupiter represents wisdom and expansion; Venus represents desires and relationships; and Saturn represents discipline and karma. The nodes of the Moon, Rahu and Ketu, act as shadows, amplifying or obscuring these energies.
A comparative look at the relationship between astrology, psychology, and modern science. Technical Basics (Ganita & Hora) introduction to astrology col ak gaur pdf work