One day a professor entered the classroom and asked his students to prepare for a surprise test.They waited anxiously at their desks for the test to begin.The professor handed out the question paper with the text facing down as usual.Once he handed them all out, he asked his students to turn the page and begin.To everyone’s surprise, there were no questions, just a black dot in the center of the page. 

“I want you to write what you see there,” he said. The confused students got started. All of them with no exceptions described the black dot, trying to explain its position in the middle of the sheet etc. 

The professor began to explain, “I am not going to grade on you this, I just wanted to give you something to think about.  No one wrote about the white part of the paper.Everyone focused on the black dot and the same happens in our lives.We have a white paper to observe and enjoy, but we always focus on the dark spots.Be happy and live a life positively.”