A lot of our suffering comes of the existence of self, either an elevated self or a diminished self. An elevated self causes arrogance, selfishness, pride, fear and anger. A diminished self causes jealousy, anxiety, low self-esteem, depression and isolation.
However, when we observe the causes and effects of our thoughts and emotions carefully, we may realize that all of our thoughts and emotions are preconditioned by the environment or previous actions. Then the false sense of self, a mere creation in our mind, will disappear. All of our suffering will disappear and bring us back to the present.