Answer:
The manorial system provided people who lived on the manor with homes, jobs, and security. The serfs worked the land, providing some of their labor or part of the crop to the lord, who also might have lived on the manor. In later times, they were likely to sell part of the crop and pay rent with money.
The were considered bound to the soil, and this was a two way attachment. They were not allowed to move off the manor without permission of the landlord, but the landlord was similarly not permitted to make them move away. In time, serfs moved away to towns and cities, but they gave up the homes and security they had on the manor when they did so, and this meant it was not an entirely liberating experience.