"When obedience becomes our goal is it no longer an irritation; instead of stumbling block it becomes a building"

To start off, what this quote means is that in life you gotta obey the rules do not take it as a bad thing but a good thing because obedience helps you a lot in life do what you're told to do obey the rules everything is played by rules that you have to obey them so life can go well.But what this quote also imply is that at first you might not be use to being obedient but time passes and you get use to it overtime.Later on when you get use to being obedient you will no longer see it as a bad thing but the opposite you will see that overtimes it was a good choice to being obedient. Also, it will bring you farther in life which can also take you to a peaceful and happy mindset.