Great illustrations. The theme of nature is layered in the graphics.

Story is about loss, grief, and overwhelming emotions. How our emotions make us act in ways we don't always, and how bottling our emotions only makes them grow and explode over. This book gently talks about not ignoring them. Also, how we must go back and face the problems we created.
That being strong doesn't mean we aren't allowed to feel sad or cry.

"It reminds me that tenderness and strength go hand in hand"