Have you ever tried to build something using an electric screwdriver, so you touch the screw to steady and straighten it, press the button so it goes in a little, but it feels kind of jammed or stuck, so you touch the screw again instead of just looking at it and you find that it isn't cooler than room temperature anymore, and it's burned it's imprint into your fingers? I'm not quite sure where I was going with this. Perhaps metaphorically getting hurt by something that's supposed to make a positive impact in your life, after all you are building or creating something and all it's doing is hurting you. Or maybe it's that you've got to get hurt first before you reach your goal which essentially is happiness and probably even success.