How very clever.... how incredibly random.... how bizarre! Yes, it's a door. And a little welcome mat made from a small stone. And a sign that says "Peace in the Universe". What a sweet little thing to find. So whimsical. I wonder what sort of mythical creature resides behind the blue door.
And then one of my dogs decides to investigate that which has drawn my attention.
Unfortunately, he wasn't quite as charmed. It was just another tree to him and he lifted his leg and peed on it. (No, I didn't take a picture of that!)