These are the lines that resonated with me after reading this poem. The speaker is walking from the city into nature and comes to the realization that she is very disengaged with nature and the beginnings of the human race. I think what Pick is trying to do here is reflect on the fact that we have come so far as a species that it is hard to remember where we came from; and that is nature. What I found to be heartbreaking about these lines is that the speaker is so used to being surrounded by litter that she feels like a stranger when submerged in nature. Almost as if the speaker is expecting to see bottles and condoms lying about, because they are so familiar and easy for her to identify, and then is thrown off when all she sees are different plant and animal species that she is unable to identify.