The premise here is that Janeway, feeling lonely and depressed, wonders what she can do to raise the spirits of her crew, to connect with them while maintaining her position. So instead of going on their endless journey, they decide to go inside a nebula which is much more sophisticated than they ever imagined. In fact, it's the kind of thing that Kirk would have tried to match wits with. It eventually becomes downright silly. When I watched this series for the first time, I grew tired of Neelix within a couple episodes.