freedom, purpose and happiness

There are of course many ways of looking at this. Freedom could be the freedom one has if one can float above the earth. It could be the freedom one seeks when opting out from the way of life many others in the area have chosen. It could be living within the norm.

What does Christ mean when he talks about freedom? It seems to me that purpose and happiness are tied up in there so I have placed these words together as they seem linked (trinsically linked) (trinsically does not seem to be in the dictionary but it is used in essays, odd!)