Can you think of a time when you felt like, "What in the world is going on in my life? Why did that happen to me? When will I finally get what I've wanted for so long? Why, God, why? When, God, when?!" If you've been alive very long, you've probably had an experience like this at some point.
The truth is God loves us and He has good plans for our lives, but that doesn't mean life is always easy. We all go through difficult times and things happen that aren't fair. In fact, Jesus tells us in John 16:33, "In the world you have tribulation and trials and distress and frustration." It's so important for us to understand this so we won't be confused and lose our faith in Him when life is hard.