"Hob Gadling" is a character from a story called "The Sandman". He's like a regular guy who doesn't die, even though he's very old. This means that he's been alive for a really long time and has seen lots of different things happen throughout history.
He meets a guy named Dream, who is a powerful being that controls dreams, and they become friends. Dream comes to visit Hob every hundred years so that they can catch up and talk about what's happened since they last saw each other.
Hob is a really interesting character because he's lived so long that he's seen the world change in all sorts of ways. Even though he has some sad memories and regrets, he's also hopeful about the future and excited to see what else might happen during his very long life.