So, what is Nature's way of telling you that the way you've taken is not the one that will lead you where you wanna go? It's Failure. That might be counter-intuitive but it's a fact, so obvious that we ignore it up to the point that we've forgotten its true meaning. There is no other way for Nature to let you know that you should stop, re-think, take a different path and move on. Next time you find yourself falling or failing, think that this actually brings you closer to your destination.