This is one of the most emotional unions around. Sun in Pisces’ sensitivity to all people blends with Moon in Cancer’s sensitivity to her nearest and dearest. While Pisces has difficulty protecting himself from external energies, Cancer can teach him a thing or two about creating a protective shell. At the same time, she’ll understand exactly where he’s coming from.
Sun in Pisces empathizes with everyone. He is the universal sponge, absorbing people’s pain and joy. This makes him the most sensitive and romantic of partners, although his lover may be perturbed when she realizes that he can feel just as much for the person down the street (who needs help). Sun in Pisces must work on firming up his boundaries. This will enable him to block out people who are negative influences, while allowing him to focus on his primary relationship (and his goals). Having said this, he’ll always have a connection to the greater force that lies beyond most people’s understanding.
Moon in Cancer feels for people closest to her. Highly protective, this nurturing sign restricts her feelings to those she considers family (including her partner). While this makes her suspicious of outsiders and slow to open up, it allows her to be selective about her emotional involvements. At her core, Moon in Cancer is so giving and sensitive that she would be overwhelmed if she didn’t put up a shell. Her partner will note her extreme sensitivity if he says something that she interprets as ungrateful or neglectful.
Sun in Pisces will be supported and protected by Cancer’s shell. Moon in Cancer will intuit that Pisces means well, but is vulnerable to those that might take advantage of him. Together, they can achieve an unusual degree of emotional resonance with each other. The only drawback to this is if they lack grounding Earth or detached Air in their charts. Then, they run the risk of getting swamped by each other’s moods.