When I was walking along in the Alentejo area of Portugal, I looked down and I wondered if I was seeing a real plant, and a real rock. For some reason, both the rock and the plant looked to me as if they had been created by human beings; and were not natural at all. The rock seemed to have been knitted or woven out of wool, the plants were perhaps plastic, like bottle brushes.
I examined them closely and I found that in fact they were completely natural.
Do you see what I mean about them, or do you just think I have an over-active imagination?