''when obedience becomes our goal, it is no longer an irritation: instead of a stumbling block it becomes a building block''
by: James E. Faust

       This quote by James E.Faust means is when you are a stumbling block you make errors you will fail. Later on you will become a building block which you can reach your goals and nothing can stop you from reaching your goal. You can only reach your goal with obedience and you may no longer be a stumbling block. you will improve and keep a building block knowing more knowledge and being obedient. obedience will result at the end. for example if your parent taught you to not steal and you do it their will be consequences. if you bey their will be awards that will come to you.  obedience is the key to to happiness and joy.  building blocks will be more useful than stumbling blocks.