Competition, comparison and judgments...
Competition:
When we are born we are compared with our siblings, later with friends,colleagues etc,...no matter how great you are but when compared,either you will be better or lesser in the point of view of others. If you are lesser then you will be in a state of sadness,self doubt,lack of self esteem and jealousy. But if you are in better position then you will be in a state of high ego, high self esteem, over confident and too much proud of yourself.
Either stage is not good...because of competitions relations are badly effected and indirectly life is effected.