If this is from the poem "Mending Wall". Then I believe the answer is: The rocks that make the wall". I believe this poem is about a wall between two farmers farm and each year the rocks tumble and fall as "Something doesn't love the wall" So each year these two farmers meet on their own side of the wall and reconstruct it ever year. While on of the farmers say "good fences make Good neighbors." This poem seemed a bit odd to me and I don't entirely understand it myself so I hope I can help!
~Brainly Frequent Answerer Oxideko
