The commune in a dream means meeting people and living with them in an intimate space while they sleep. The commune in the dream often represent gathering of everyone who share similar feelings and interests into dormitories, such as those who spend more time together outside of schoolwork.
To some dreams involving living in community could symbolizes drowning yourself in community rather than drowning yourself in one task given your limited time. You may become immobilized with community distractions, hence leading to lower individual productivity.