Mine

I made a sand castle.
In rolled the sea.
"All sand castles
belong to me—
to me,"
said the sea.

I dug sand tunnels.
In flowed the sea.
"All sand tunnels
belong to me—
to me,"
said the sea.

I saw my sand pail floating free.
I ran and snatched it from the sea.
"My sand pail
belongs to me—
to ME!"