Pisces and Dreams
Pisces are ruled by the twelfth house, which represents dreams, illusions and the unreal. Pisceans tend to have fantastic, lively, romanticised dreams leaving them with euphoric feelings. These represent what they crave emotionally or are lacking in reality. Either this, or terrible, frightening dreams which can be nightmarish. These represent a conflict they’re having a hard time dealing with in their waking life.
More on dream interpretation here