Maybe when talking about Freedom we need to consider that each person has his/her own ways of defining the state of being free meaning it's rather individual and subjective, and still there are some universal markers.
Let's take kids for example - when are they most free (and happy) - when there is a free day from School or playing a game that allow them to act their natural way - maybe football or tag. Well, maybe that's the best part being a kid - you can find many simple (or even pointless, according to grown-ups) activities interesting and amusing, spending hours doing them. And this gives you the sense of freedom, pleasure and joy.
With age things start changing quickly and make people different. That's very simple and it's because
naturally every single person strives towards his/her own understanding of freedom. One can find being a policeman/life-guard to be his/her way of having (and defending) freedom (and law), while other may find freedom in the intellectual or spiritual sphere - being a sci-fi author, web-designer or yoga master would give them maybe equal and sufficient degree of freedom, fulfillment and joy.
Because basically that's what is freedom according to me - someones way of finding a way to feel free, fulfilled and happy.
Well, here though comes the controversial part. Being too involved in being free, you become a slave of your own
freedom fixations. This can be easily explained with examples: For instance if a painter likes very much his art work and feels free only when he is painting, he would become so obsessed subsequently with his own art that he turn into a slave of freedom fixation. And this is a kind of
paradox - he is both simultaneously in his state of freedom, and limited by being so obsessed by this. He has become a
Freedom Addict 
And as you can see this phenomenon is behind most manias and addictions - physical and psychological. I think their is quite a link between
mind & body - that's why most addictions line smoking for example are that hard quitting.
Well, this is really one good example -
smoking. Since this activity involves both physical addiction and psychological dependence. And the paradox is that for a smoker the cigarette smoking is a way of getting his dose of freedom (or actually nicotine, to be correct). But this kind of freedom is actually one great limitation - especially from a non-smokers point of view. Well, smoking is really a great paradox. The good news is that
really free people have the strength to look from above and decide whether the type of freedom they are fixated at is not more limiting than freeing

Finally, I'd say:
1. Freedom is a rather subjective state and also there are different types of freedom - sometimes also physical;
2. Life in general is one great searching for freedom and movement from one to another freedom, from one freedom fixation to another..
