I really appreciate this sentiment especially this part: "and even if they didn't, wouldn't it be nice if the next person that lived here could enjoy the shade of these trees? Because I had wished that twenty years ago, someone had planted trees for our shade."

I guess this goes into personal beliefs but, I have a feeling that if houses can be haunted with spirits who aren't ready to move on, then why can't forests be a safe space for spirits to come back and check on the work they did on Earth. I get this feeling when I go into old growth parts of the forests where people have tended to the trees for centuries, like someone is happy that humans/plants/animals are benefiting from the ecosystem generations later.