They stand in parks and graveyards and gardens.
Some of them are taller than department stores,
yet they do not draw attention to themselves.
...
Read full text
The universal theme is just what the world means and different things in it.
Top search results say the the theme of 'Trees' is self-identity. I think it is focusing on the silent, ever-present, resilient, lasting nature of trees compared to humans. ('We lost this game a long way back.') Delightful. Wonderful images..