An objective perspective is one that is not influenced by emotion, opinion or personal feelings - it is a perspective based on facts, things quantifiable and measurable.
One day that I needed to think objectively was when choosing which college I should go to. On one side I had the college of dreams, but very expensive for my conditions. On the other hand, I had another college, which was not what I had dreamed of, but it was of a good quality and less expensive. At that moment, I acted objectively and rationally choosing the number 2 university, which is fit my conditions and would not bring me economic problems.
I believe it is possible for a person to be genuinely objective if that person totally ignores their emotions and this is not easy. So it is possible to be genuinely objective, but it is very difficult to achieve.