The sign of Cancer belongs to the element of Water, just like Scorpio and Pisces. Guided by emotion and their heart, they could have a hard time blending into the world around them. Being ruled by the Moon, phases of the lunar cycle deepen their internal mysteries and create fleeting emotional patterns that are beyond their control. Cancer rules the fourth house of the Zodiac which sits at the bottom of the zodiac wheel, and thus, rules the “foundation” of all things.
composite of 4 photographs: the moon, the water and the self portrait are all mine; the crab constellation image was grabbed from google images (with thanks).