““Our REM sleep in 90-minute bursts, in a 24 hour cycle "digests" trauma that is experienced on a daily basis. In dreaming, the brain compares the trauma with early memory traces of similar experience, and files the memories of the day's events according to an affect-based associative system for further use and potential survival value. Comforting figures may appear in the dream to give care, advice, counsel, and relief, if necessary. The nightly dream process helps the dreamer receive positive resolution of his or her experience, and the dreamer moves on to the next day's activities restored, refreshed, and prepared for survival-based action.””
