What is the meaning of a believer is a bird in a cage a freethinker is an eagle parting the clouds with tireless wing?

The main ideea is that people tend to listen to other opinions and refuse to think for themselves.A good example is religion...we listen what others say about god,the way He punishes us if we don t do as He says...etc.We are afraid to take responsability for our thoughts,it s more easier to blame other for the things they told us than is to take responsability and dare to question ourselfs if what is been told to us for hundred of years is really true.So...a man whothakes for granten everithing others say is like a bird in a cage...and on the other line...a person who dares to have a free mind is like an eagle...free...free of fear,of what everybody teaches us from childhood.......WE ARE WHAT WE THINK