Janie's fear is understandable. Her ability weakening her with every dream and there is nothing she can do about it. Until she realizes, that maybe there is. She could run, she could leave everything and everyone behind and run. But that means running from love as well, but isn't that what's best for Cabel. Fear is funny like that. Sometimes, it makes you think that the thing you're running from is really for the benefit of someone else. It isn't until Janie gets all the facts that she realizes, that while fear is understandable, running from it is not. She realizes that facing it head on is the best way to live her life.
The Hunger Games trilogy has no shortage of fear. After all, it's the fear of Prim dying in the arena that propels Katniss to volunteer in her place. However, the fear I want to talk about here is the one that finds Katniss running after she realizes she is heading back to the Games. It's an instinct, a reaction, something she finds herself doing before she even realizes it's happening. Fear is like that. One minute, it takes over your senses, making you do things you normally wouldn't do. It isn't until Katniss calms down and has time to think that she drags herself off the basement floor and comes to the only understanding she can muster: this time, it isn't about her.
Is it fear that drives John Smith to move from place to place to hide from the Mogadorians or is it survival? That is the question that plagues even the best of us. Sometimes, it takes courage to run. Sometimes, it takes courage to fight another day. But, how do you distinguish between what is courage and what is fear? In the end, John fights. In the end, his motivation to survive overcomes his fear of dying. Fear can, in some cases, be a good thing. What you need to remember about fear is not to let it control you. In the best circumstances, we can use fear to help up. This is what John does.