Those born under the sign of Cancer, ruled by the mysterious Moon, are one of the zodiac's enigmas. It is fair to say that most Cancers are a bundle of contradictions. Compassionate and caring with friends, family and lovers, yet they can cut to the bone with their jealous remarks and ever-changing moods. Endearingly eccentric on one hand, and on the other, insecure about how others see them. Like their astrological symbol - the Crab - Cancers can appear hard and insensitive on the outside. However, for those of us who know and love a "Moon Child", we understand that deep below lies a softness and sensitivity.im caitlin.