I wonder whether the second sentence in this pragraph is correct and whether it is possible that a purpose plays something. I would think that it should read: What purpose does tenseness serve?
You serve no purpose when you are uptight. What purpose does tenseness play? It does point out to you that you will do well to unwind. Of course, you have to let go of tension. With tension, you tie yourself up in knots. What is the point of doing this to yourself? No matter what is going on in your life, even when it is a life and death battle, tension isn’t your friend. Well, then, tension must be ego at work. Ego and tension do not stand anyone in good stead.