"Ego death is an experience that is said to reveal the illusory aspect of the ego, sometimes undergone by mystics, shamans, monks, psychonauts and others interested in exploring the depths of the mind.
The practice of ego death as a deliberately sought "mystical experience" in some ways is said to overlap with, but is nevertheless distinct from, traditional teachings concerning enlightenment/"Nirvana" (in Buddhism) or "Moksha" (in Hinduism and Jainism), which might perhaps be better understood as transcendence of the notion that one even has any actual, non-illusory "ego" with which to experience "death" in the first place.(wikipedia)
You do not exist: A look inside Ego Death *