Instead of grumbling about the rain, two little girls enjoy how it makes shiny black streets, forms fun puddles, and sounds like tap dancers on the roof of their bus.
A mother provides examples of how her toddler is both big and little, including little enough to ride through the park in a stroller but big enough to make the pigeons fly away.
As a child imagines becoming a tree, a house, a book, a teddy bear, or a grown-up, Mama explains that she will always love him no matter how much he grows or changes.