Throughout history, people have sought meaning in dreams or divination through dreams. Dreams have also been described physiologically as a response to neural processes during sleep; psychologically as reflections of the subconscious; and spiritually as messages from gods, the deceased, predictions of the future, or from the Soul. Many cultures practice dream incubation with the intention of cultivating dreams that are prophetic or contain messages from the divine.
Judaism has a traditional ceremony named Hatavat Halom. Literally meaning "making the dream a good one", through this rite disturbing dreams can be transformed to give a positive interpretation by a rabbi or a rabbinic court.