It could be that the comment that Luke says comes from the beginning of the movie,…when Rey is trying to persuade him to teach the Force to her,…he is in hiding and now a hermit after his students were wiped out by his nephew
J
I would say not. If you brighten the image of the last shot, you’ll notice that Luke is probably in that same force tree that holds the books. I forsee that being later in a more important part of the training.