According to the Buddha, the failure to recognize the illusion of the self is the source of all ignorance and unhappiness. It is only by renouncing the self, that is, by dropping his ego defences and committing metaphorical suicide, that a person can open up to different modes of being and relating and thereby transform himself into a pure essence of humanity. In so doing, he becomes free to recast himself as a much more joyful and productive person, and attains the only species of transcendence and immortality that is open to man.
Neel Burton, Hide and Seek: The Psychology of Self-Deception