I always want to figure out the reason why people commonly feel alone.Actually,loneliness is generated by survival will,which is the source of diverse desire.Because everyone is imperfect,especially showed on the personality,which means they would feel dissatisfied to persue to be perfect.However,to persue perfection in a life is making the loneliness due to the turth is it isn't realistic to be perfect as individuals.Therefore,all the people assume the innate loneliness along their lives.