VIDEO : What Is Pixar's 'Bao' About?

"Bao" is the new animated short, playing before Pixar's 'Incredibles 2.'
According to Buzzfeed, the film is a tear-jerker.
What's it about?
A mother dealing with empty nest syndrome finds a dumpling that comes alive.
She has fun with it as if it were a child and grows sad as it ages, realizing nothing lasts forever.