A loved one was not healed. The desire of your heart was not granted - at least, not to your satisfaction. The miracle you needed has not yet come.
Time drags on, and the problems are still there.
The worst part of it all is that the Word of God tries you in such times. You set out to claim those promises. You know God is not a liar, and He would not tease you with unreachable goals. According to the theology of some, there are only two reasons why you did not get what you asked for. Either your faith is faulty or there is sin in your life.