Roses reminded him of home, used to calm him down after a long and stressful day of school. He could sit hours in front of the rose bushes in his backyard and watch them as they slowly moved in the wind.
“ ‘‘The belonging you seek is not behind you. It is ahead.’’ Sooo yes, the belonging ahead is Kylo, because we see his shadow, and he’s in front of her you know? And the marks are behind her? Anyways some symbolic Reylo stuff