Dreaming about being in a building (or vessel) in which people are legally held as a punishment for crimes they have committed or while awaiting trial has important message for you. In the dream to see that you are in prison, signifies the limitation and the censorship. Maybe you are being censored or suppressed and not allowed to express yourself or show full potency of your talents. Dreaming that someone else is in prison signifies restricted aspect of this person. Alternatively, it means that you are unable to express freely because of this person. Dreaming that you or someone is released from prison denotes that you need to make important decisions or major changes in your waking life. Eventually, with huge efforts you will overcome your obstacles. You will reach fortune. Please also see jail.
Read more about dreaming of Prison in other dream meanings interpretations.