noun:  compelled performance
noun:  surrendering one's free will to that of another
noun:  the system of owning people as slaves
noun:  the practice of owning slaves
noun:  work done under harsh conditions for little or no pay
noun:  the state of being under the control of another person
Sri Shankaracharya))
"Manas (mind) is the cause of the slavery of a person and at the same time a tool of his liberation." [Sri Shankaracharya]
See Also
