Sometimes you really feel like you have run into a brick wall. You hit your head hard on a wall, or at least it feels like you hit your head hard and you do not know why it happened, or what you are supposed to do about it. You're stuck.
First thing, patch your head if you have to. Next, thank G-d it wasn't harder. Now, take a wider look at what hit you and try to figure out why it happened. Everything comes for a reason. The Baal Shem taught that everything a person sees comes to teach him something.
"Did I do something like that to someone else?"
Is there some direction the incident moved you? Take a wider look and see what might have caused it.
In the picture here, if you look carefully you will see the tip of one of my shoes on the bottom in the center. See it?
"Oh, it wasn't a wall after all. It was the ground where I was standing. Okay, now why did I hit the ground like that?"
Keep looking so you will be able to fix what needs to be fixed so you will not have to fall again.
All this is just as true for those times when great things happen to you.
"Why did Hashem give me that wonderful present? What did I do to deserve that? I'd sure like to do that again."