What is "the point?" reflection of reading several essays

I suppose the point of these essays is to disclose something personal while trying to make it entertaining.  Bellow used humor and an experience of picture taking that is universal.  Cofer used the medium of a home movie and creating private dialog with the family members being taped.  Lowry opened a window of perspective up by being drawn to something out of her own personal tragedy and found something beautiful to write about in the midst of her coping. 

I feel like the point is gain and give the same thing: a sense of unity. No matter how obscure the situation we harness all of our energy into story telling not just for stories sake but in the attempt that someone will catch and relate to the feelings we get, no matter how inappropriate or unlikely it may be.  Not everyone will relate to Karla on death row but there was a common thread of death in all relationships regarding this story.  In fact, it could be assumed that if Lowry had not lost her son that she would have most likely not reached out to this woman. 

Over the summer I read a book about directing theater and the preface of the book questions was art is and the one of the key characteristics of art is the attempt to create unity and universality.  Creative Non Fiction is no different in my opinion.