It occurs to me as I write that this "white light," usually presented dippily (evidence of afterlife, higher power), is in fact precisely consistent with the oxygen deficit that occurs as blood flow to the brain decreases. "Everything went white," those whose blood pressure has dropped say of the instant before they faint.
Joan Didion[O]ne of the mixed blessings of being twenty and twenty-one and even twenty-three is the conviction that nothing like this, all evidence to the contrary notwithstanding, has ever happened before.
Joan Didion