In real life, things happen! There are a lot of things out of our control, we don't seem to figure things out all the time, it's why we are humans.
No one deliberately plans something bad for himself but these things can occur. And when they do, it plays out in our circumstances, we see things not going according to plan. The only option left for us is to MOVE ON! We cannot afford to stop our journey in the way, we might get crushed or something bad can happen. So, we keep moving, non-stop till we get yo our destination.