Lords and Peasants

Recently I've been plagued by what it means to have a Lord. What is God really saying when he says he's my Lord? What little I know is from middle school history classes where we learned about the feudal system. Lords were in charge of overseeing the land. To do this they needed taxes from the peasants/serfs who were not completely free, yet not completely slaves. Peasants couldn't move to another village, sell livestock or get married without the lord's/priest's permission. The lord of a territory could take portions of his land and give it to people under him who would take care of it--profitably, of course. Peasants would have a plot of land defined by how much you could plow in a day (an acre) and they had a set amount of days they were required to work on the lord's land. Crops were constantly rotated so as to prevent peasants from thinking they "owned" the part of land they were working on.

Of course it wasn't all bad. People gathered around their lord in small communities for protection. Is this a good picture of how God is my lord? Where does this human analogy drop off?

Obviously I didn't remember all of this from middle school. For those who are nerdy like me, check out:
www.historylink101.com/lessons/farm-city/middle-ages.html
www.learner.org/exhibits/middleages/feudal.html
or just google it like I did.