"To be human is to keep rattling the bars of the cage of existence, hollering, 'What's it for?'"

In this quote, Robert Fulghum is expressing the innate curiosity and restlessness that is a specifying attribute of being human. He compares human existence to being trapped in a cage, constantly rattling the bars and questioning the function of everything. This can be translated as a reflection on the human condition, where we are constantly looking for significance and purpose in our lives. It also speaks with our desire for liberty and the limitations that society and our own minds put on us. In general, Fulghum's words remind us that being human ways continuously questioning and looking for understanding in a world that can frequently feel confining.