He made him happy.

The group after Glenn's death go to Hilltop because Maggie and Daryl needed doctor right away. Jesus helped the doctor Harlan and stayed by Daryl's side. Something good happened while they spent time together.
Jesus made Daryl stand up again. To feel, to live.
~~I'm writing this before season 7 I don't know who dies so I'm writing Glenn just like in the comics. The action is pretty fast but since it was a one-shot.. I hope you enjoy this smol one-shot of my otp:)