Niebauer writes that our sense of self, or ego, is an illusion created entirely by the left side of the brain. He addresses the difference between the left and the right side of the brain in order to understand how our mind create an illusory reality and is able on the other hand to be creative, intuitive and compassionate. Niebauer writes that our sense of self, or ego, is an illusion created entirely by the left side of the brain. He addresses the difference between the left and the right side of the brain in order to understand how our mind create an illusory reality and is able on the other hand to be creative, intuitive and compassionate.