Little boy

How can words express the wonder of watching my nephew grow and change everytime I see him?  His mom had jury duty today and I watched him for a couple of hours.  He's cooing, talking to himself, telling little stories, playing contentedly with his toys.  I love the way he laughs and looks at me waiting to see if I'll think something's funny, too.  He throws himself into my arms, having no worry whether or not I'll catch him or even want to hold him.  He puts his arms around my neck and lays his head on my shoulder.  

It is wondrous!  It is a marvelous thing!  My, Zachary.