So I went down to see Mr. Tree again, the friendly soul, and this time, something was different. Someone was there. A very friendly lady was introducing Mr. Tree to her friend I just happened to be there at just the right time so she kind of naturally included me in the conversation.
Turns out I'm not the first human Mr. Tree has taken an interest in. She said she was a bit of a spiritual networker, and went to visit Mr. Tree almost every day, and he really helped her get over some trouble she was having. She even showed me her favorite spot to sit on his roots. Mr. Tree had tried to show me on his own but I didn't quite get it at the time, I just politely sat down a bit and then rolled out a blanket nearby.
As if all that wasn't enough, she very matter-of-factly let me know that there used to be anti-chernobyl dance sessions there. It would appear that Mr. Tree is one political animal.