It is a watery sign, generally weak, ruled by the Moon, which is changeable in nature and tender. Jupiter, the significator of knowledge and fortune, is exalted in this sign. Mars, the significator of energy, is debilitated in this sign. These factors render the Cancerians caring and nurturing, highly emotional, intuitive, gentle and considerate. If Cancer rises as the ascendant, the Ishta Devata (form of god for worshipping and meditation) would be Lord Shiva. This sign rules the rib cage, chest, heart, lungs and breasts. If the Moon and Jupiter are strong, the Cancerians enjoy good health. Otherwise, they have a sickly constitution and unpleasant appearance and suffer from mental maladies, physical ailments of breast, chest, heart and epigastric region, lymphatic and circulatory congestion, jaundice and other liver complaints, etc. Under the Systems' Approach, Cancer is treated as the mooltrikona sign of the Moon.
Cancer is a moveable, negative, satvic, kapha, female, mute, fruitful and multiped sign and signifies grace and cleverness. Depending on the influences on the ascendant and/or the Moon, the sign Cancer usually renders their natives good hosts, capable of receptivity and adaptability, generous, peace loving, with humor, wit and imagination or overly emotional, sensitive, shy, moody, attached and dependent. As the Moon is of volatile nature and becomes weak quite often either in pakshabala or by going to malefic houses from the ascendant or by being in infancy or old age or by going to its sign of debilitation, either in rasi or in navamsa, or by occupying the mooltrikona sign of any weak planet, the Cancerians are changeable to inconstant in their behavior. Depending upon the strength of Mars and the Sun being prime determinants of profession and the Moon for a stable profession, Cancerians become administrators, public relations managers, healers, nurses, house keepers, hoteliers, restaurant owners, catering professionals, cooks, eating-establishment owners, professionals dealing with liquids, etc. The influence of other planets on the tenth, first or second houses changes the professional pursuits.