Mad Swede
Auror
Sort of, though Skogsrået is a bit more than that.Sounds like the lotr forest spirit that defends the forest.
This sort of message is quite a common thing in Swedish mythology; if you care for your environment the various guardian spirits will care for you and yours. In mundane terms, it's a way of teaching people how to care for their environment when you don't have the scientific knowledge to explain why these things work.
It's like the "tomte" you found (find?) in every home and in every farm in Sweden. They protected the home, those living there and their animals, and helped you as the home owner/farmer keep an eye on things - provided that you did your bit by keeping the place clean, tidy and organised. If you didn't, the tomte would leave and you'd be hit by very bad luck. Most people would leave a bowl of porridge (made with cream) out for the tomte on the eve of every major festival (Christmas, New Year, Easter etc) as a form of thanks - my grandmother always did. And as Nils Holgersson finds out in Selma Lagerlöf's book "Nils' Wonderful Journey", being nasty to the tomte can have some very unfortunate consequences.