Man's free agency is not of the mind, for that is bound. There is no freedom there.
The Vedas teach that the soul is divine, only held in the bondage of matter; perfection will be reached when this bond will burst, and the word they use for it is, therefore, Mukti - freedom, freedom from the bonds of imperfection, freedom from death and misery.
One may gain political and social independence, but if one is a slave to his passions and desires, one cannot feel the pure joy of real freedom
Give up all desire for enjoyment in earth or heaven. Control the organs of the senses and control the mind. Bear every misery without even knowing that you are miserable. Think of nothing but spiritual freedom.