On the topic of feeling sad to know what happy is all about. I think this is what pushing the limits is all about-knowing how far you can go, and then being able to judge how close you are in the future. I think that it correlates to the making mistakes part where we can't all be perfect all of the time, what what should we be held accountable for? For some things it make take me making more than one mistake more than one time before I truly understand what I am doing. I am not sure how many freebies I get, but god gives you quite a few (supposedly) and I think that in itself is a reason many people believe- someone to give them another chance.