Are you rapidly running on a hamster wheel going nowhere?  Has life become monotonously frustrating?  Feel like you are circling the same tree repeatedly?   Maybe you keep going down the same dead-end path because you haven't mastered the lesson you need to learn.  Get off the hamster wheel, stop, sit down and wait for the truth to reveal itself to you.  Patiently waiting for that door to open could be the most productive thing you can do.