There is an opinion that freedom is the ability to set your own boundaries of what is permissible. Often, I censor the thoughts that I want to express. I am not free in front of my own sincerity, in front of my own declaration. This is worse than physical captivity, in which one can be free through three bars, if one feels so. A bird landing on a prison window does not think of captivity. Relativity and absurdity.