Our mind can be unconquerable
Our mind reads the information that we send to it. All is going well with us, we are feeling happy suddenly we felt something is stuck in teeth, after realizing our tongue continue goes there and try to get it out meanwhile if we are talking to someone we don't have heard to him/her. a little piece of food can affect many of us, so what we have to do is carry toothpicks or any such things that are appropriate for our problem. now the point is that what we have to learn from this example have to understand that when something stuck in one tooth,(in mind) we disturb sometimes so relate this situation to our life we stuck ourselves in one tiny problem and don't focus on things which are important and that are fine and good in condition, we waste our time on holding tiny things which can be sort by one small solution like a toothpick and let the time go in stupid thing.
So the moral is that we should not let go the time ,we should let go the instances which can hurt ourselves or find solution for it instead of holding it on.