Chaos is prison. 

A calm mind, one that is developed from meditative concentration,

is freedom. 

Just as an organizational system brings order to a situation in disarray, meditative concentration brings order to a mind that is chaotic. While we may assure ourselves that a constantly moving mind is a sign of freedom, it is not. Such a mind is in prison.

Prisoners are under the control of others.

Told to leave their cells, they leave.

Told to stay in their cells, they stay.

A chaotic mind is another form of prison. Just more subtle. More debilitating. The chaotic mind also cannot go where it chooses. As soon as it tries it is prevented from doing so, swept away by different thoughts, including regrets and fears. Even when found, happiness ends all too soon.

This unfocused mind has no control, no freedom. With meditative concentration and the mental order that arises from it, the mind can soar wherever it wishes. Even away from regret and fear. This truly is freedom.