The point is quickly made that worry is useless. It does not accomplish any good thing. If that’s so, then why worry? Why be so anxious? 

Mathew 6:27 teaches us that who of you by worrying and being anxious can add one unit of measure to his stature or to the span of his life? 

Worry and anxiety blocks your thought positively, leaving your mind wandering and thinking negatively instead of looking forward motivating yourself and inspired by the good things around you.