abstract: deconstruction of a tree

I passed this on the way to work today. A dried leaf caught in a fence comprised of wood pulp.
It came to me that everything I saw came from a tree. Circumstance had constructed some bastardised abstract of a tree. There was the wood, there the leaf. Yet how far from a tree in nature it was; how lost in thought I was ruminating over this. I am sure I passed actual trees later on my walk and paid them no mind whatsoever.