My dad was, long before I was born, an oral storyteller. Whether they were religious stories he made up to make a point with classes he was teaching (I can, some fifteen years since I last heard it, still recite his story "Mable the Angel" from memory) or just stories he made up to amuse me or my sister, he always told stories. He did them better out loud. He'd write them down, but they were mostly in hodge-podge note format, just to jog his memory if he had to retell the story, a year later. I always marveled that he mostly did the telling with his eyes shut.
I adore oral storytelling. When it's done well, it's magic, and it adds layers to a story that you can't get from the page. Without fail, every time, I've read a Neil Gaiman or a Terry Pratchett story in the last year and then turned around and heard the audio version, I've gotten something new out of it. Whether it's realizing "Oh. That's why the story is written like that. It's a fairy tale," or just realizing that someone has a crustier tone of voice than I thought, it fills a story out for me.
The great sagas, the Icelandic tales and the Illiads and Odysseys of the world, Beowulf, these were all oral stories.
In Africa, there are stories which a father takes a son out into the desert to tell, and in telling, it is part of what makes him a man. These stories are never written down. They are told to each generation, who keeps it and eventually tells the next generation.
We owe it to each other to tell stories, whether verbally or in writing. We may be able to look up at the stars any night we please, but it's stories which make us look up and wonder what they are, and why they are there, and what they have to do with us.
When I do my own writing, one of the things I do before editing is read it out loud, emotively and expressively, with accents and inflections and everything I think it needs. If I find something that I am, spur-of-the-moment tempted to skip over and not read out loud, it is deleted that instant without any hesitation. If a sentence does not work for me out loud, then it does not work. Period.