Trees Can Join Neighbors

There isn't an arborist among the four of us, so let's just bullshit them as sort of educated non-specialists. The frost is making the conservative argument one way or other that what we use, we use nature and we supplement nature with things like walls in order to keep ourselves separate and apart and subjectively distinct. So I kept thinking that there was a real slide in the phrasing between the anthropomorphic vision of neighbor being a neighbor and the non-anthropomorphic. That is the whole point of the poem. Exactly.