Both have a great capacity for emotion and compassion. They complement and harmonize with one another very well. The overall empathy and commitment that these two Signs value in a relationship is what will keep the ties strong and long lasting between the Crab and the Fish. Both signs are basically tolerant and sympathetic, and Pisces is easily energized by Cancer’s ideas. A Pisces mate can open a Cancer’s eyes to the world of creativity and spirituality. In turn, Cancer’s practicality can be a guide, leading Pisces to the fruition of their dreamy, utopian ideas.