Freedom can mean alot of different things to a lot of different people. To some people freedom means not being locked up, to some it means that you are able to say whatever you want and to others it might mean to be allowed to walk with no clothes.
For a Christian however it is possible to feel full freedom locked up and muted. There is a freedom that no-one can take away from you, the freedom given by Jesus Christ. One of the great paradoxes in the Bible is when Paul explaines how he is set free, only to turn around saying that he is now a love slave under God. It is the true freedom only found in the complete obedience under Him who created us.
This means freedom from sin. Freedom from spiritual bondage. Freedom to be exactly the person God intended for you to be, the freedom to purue the goal in life that you where created to achieve, that is real freedom.