What is it about?

One day, Professor John Morgan entered his class and asked his students to prepare for a surprise test. They all waited anxiously at their desks for the exam to begin.
John handed out the exams with the text facing down, as usual. Once he handed them all out, he asked the students to turn over the papers. To everyone’s surprise, there were no questions– just a black dot in the center of the paper.
The Professor, seeing the expression on everyone’s faces, told them the following: “I want you to write about what you see there.” The students, confused, got started on the inexplicable task.
At the end of the class, the professor took all the exams, and started reading each one of them out loud in front of all the students. All of them, with no exception, defined the black dot, trying to explain its position in the center of the sheet.
After all had been read, the classroom was silent.. Professor John Morgan smiled & said.. I’m not going to grade you on this, I just wanted to give you something to think about.
I'm surprise no one wrote about the white part of the paper which is bigger than the black dot. Everyone focused on the black dot – and the same thing happens in our lives.
However, we insist on focusing only on the black dot – the health issues that bother us, the lack of money, delay marriage, exams failure, difficult relationship, loneliness, hardships on campus, disappointment with a friend....etc.
The dark spots are very small when compared to everything we have in our lives, but they are the ones that pollute our minds because we give it too much attention.
Take your eyes away from the black dots in your lives. Enjoy each one of your blessings, each moment that life gives you. Be happy and live a life filled with love, faith & hope!
That's what the white part of life is all about.
Enjoy the moment..Remember that our main goal in life is not happiness,  but goodness.
Not reputation, but character.
Not wealth, but virtue.
Not fame, but faith.
Not the approval of man, but God.