Pisces is the twelfth astrological sign in the Zodiac, which originates from the Pisces constellation. The basis for the mythology surrounding Pisces has its origins in the story of Aphrodite and Eros, and their clever escape from the dreadful monster Typhon. The story goes that Aphrodite and Eros were enjoying themselves along the Euphrates river, when suddenly Typhon came charging down upon them.
To escape the monster they dived into the river and transformed themselves into fish, to help them move more swiftly through the water. They also tied themselves together with a cord so they wouldn't lose one another in the dark and chilly depths. This is the story that supplies the modern symbolic representation of Pisces, the image of two fishes tied together with a cord.