To dream about shower curtain is the symbolism of your desire to hide away from the world. If you dream that you have a shower without curtains and you are seen being naked, it means that some part of your life or thoughts is known for the others, but you havent been ready for that yet. If you dream that someone walks in while you showering, you will be exposed accidently for something you have done, or your secrets will be revealed.
Dream dictionary: Shower curtain dream meanings
…expansion of one’s business, or victory over one’s enemy. If an appointed governor sees himself looking into a mirror in a dream, it means that he will be dismissed from his post. If an appointed king sees someone who looks like him sitting in his throne in a dream, it means that he will beget a son. If he divorces his wife in a dream, it means that he will abdicate his throne. To see oneself sleeping with the king in the same bed and without a curtain between them, and if the king leaves the bed while one remains resting therein in the dream, it means that his mixing with the king will incur jealousy, or that he will inherit him. If one leaves the bed before the king, it means that he will escape from a great danger. If one sees himself sleeping alone in the king’s bed…