OK, here's a story that i found in a Chicken Soup book that I think everyone needs to hear:
Once there was a boy who loved butterflies. One day, he found a cocoon. He ecstatically put the cocoon on his windowsill and eagerly awaited the day when the butterfly would emerge. When the butterfly began to emerge, he was even more excited. But the butterfly was having a difficult time of it, and the boy became concerned. He opened the cocoon and the butterfly emerged, but was unable to fly. Its wings were too heavy.
The boy's father happened to be an entymologist, someone who studies insects. He asked his father what went wrong. His father calmly explained that as the butterfly struggles, it is shaking the mucus off its wings. If you do not allow it to do this, its wings become too heavy and it cannot fly.
The moral: we are that butterfly. This is why we struggle. God wants us to be able to fly. If we did not struggle, we would be unable to fly.