I imagine at some point a tree came down (at this very spot?) and rather than turn it into kindling, someone with a wonderful imagination cut it into sections and breathed a new life into it.
I have a spot in mind at the back of the garden at our eventually-to-be-new house where I want to do the same thing. It’s plenty shaded and has lots of ivy scrambling around. I picture crazy little yellow flowers cozying up to the logs.
Wouldn’t it be magical to happen upon something like this in a secret garden?