''Even the most perfect reproduction of a work of art is lacking in one element: its presence in time and space, its unique existence at the place where it happens to be"
I think this passage means that its hard to remake a art piece because you can never fully grasp that particular moment when it was created. And what makes it so different is because it can never be made again in the way it was first made.
The reason I chose this passage is I feel that things cant be remade in the way it was the first time. Its hard to capture those feelings and thoughts you had when that picture was first made.