Zen/Chan, which used to be a Far Eastern philosophy-cum-religion, has evolved into a global cultural phenomenon. Despite the many views expressed by numerous thinkers in the world, the consensus on Chan and Chan enlightenment remains an agnostic Oriental mysticism. By exploring Chan and enlightenment from a combined perspective of history, philosophy, psychology, religion and linguistics, this article proposes a hitherto unexpressed view. Chan enlightenment is a prenatal physico-psychological existence, which grows out of a fetal subject’s perception of the womb. Although (...) this primordial mode of perception is unconscious, it is cosmic in nature because for the fetal subject the womb is the whole world with which it feels to be at one. This unconscious oneness may be termed the ‘cosmic unconscious’. Once born, no one can return to the prenatal mental state, but through personal cultivation and Chan practice one can experience a fleeting moment of the cosmic unconscious. In the final analysis, the essence o.. (shrink)