If something rekindles an interest, feeling, or thought that you used to have, it makes you think about it or feel it again. Ben Brantley's article on Sir Ian McKellen rekindled many memories
If something rekindles an unpleasant situation, it makes the unpleasant situation happen again. There are fears that the series could rekindle animosity between the two countries. to make someone have a particular feeling, thought etc again = reawaken