Feudalism was the medieval model of government predating the birth of the modern nation-state. Feudal society is a military hierarchy in which a ruler or lord offers mounted fighters a fief , a unit of land to control in exchange for a military service.
This shows that there were more than one type of monk or nun.
Working hard did not change your status. Your clothing,
food, marriage, homes, etc., were determined for you. After
the rank of king, the hierarchy was the nobles, the knights,
the clergy (religious people), the tradesmen and the peasants.
You were born into a class of people
and generally stayed in that class for your entire life.