Once upon a Greek myth, the goddess Aphrodite and her son Eros were walking along a riverbank when they ran into a monstrous god called Typhon who was in a very bad mood and was, in fact, spitting fire. They got out of his way. They dove into the river, where they took the form of fish. And because they didn't want to lose track of each other, they each held on to the end of a silver cord. They are now immortalized as the Northern Fish and Western Fish of Pisces. The constellation of Pisces looks like two little circles connected by a string, and that is where the idea probably came from. But what does it mean? Here's one interpretation: Often when it's time to avert the dangerous fire-breathing monsters of life, we must change in some way. And in the transformation, it's really cool when we can find a way to hold on to one another so that we can keep facing life's adventures with the ones we love.