Metaphorical interpretation is left as an exercise for the reader

Here's what I've learned from having a [mysterious, undiagnosed] debilitating chronic illness: When you have a system that's in failure, and you don't know what's wrong with it, you have to keep going. You have to keep trying to fix it, even though you lose hope, each time, that a new remedy will have any effect. You have to keep making plans for next week even though you might be too sick to show up. You have to pretend, to everyone else and to yourself, that there is a possibility that things will get better. You have to pretend to believe that someday soon somebody is going to identify the source of the problem and they will know how to fix it and your insurance will pay for the fixing and everything will go back to normal. You have to keep behaving like you believe this, even when you're sure it's just going to get worse and worse. You have to say to yourself "if there WERE a possibility that things would get better, what would I need to be doing with my time?" And then you keep going to see more doctors, and you keep trying new cures, and you keep alleviating the symptoms as much as you can, and you keep behaving as though you believe there is a chance  that it will get better soon. You have to, because no matter how doomed and hopeless you think the situation is, what if you're wrong?