Eben Alexander's 'Proof of Heaven' stirs debate about life after death
Harvard neurosurgeon's account of near-death experience attracts doubters and believers

Eben Alexander's quick trip to heaven started with a headache.
It was November 2008 and a rare bacterial meningitis was fast on its way to shutting down the University of Virginia neurosurgeon's neocortex - the part of the brain that deals with sensory perception and conscious thought.
"For seven days, I lay in a deep coma," he recalled. Yet at the same time, Alexander "journeyed to another, larger dimension of the universe, a dimension I'd never dreamed existed".
There he found "big, puffy, pink-white" clouds against a "deep, black-blue sky" and "flocks of transparent, shimmering beings... quite simply different from anything I have known on this planet".
His travelling partner in the afterlife was a young woman with deep blue eyes and "golden brown tresses" who, amid "millions" of butterflies, spoke to him "without using any words".
Alexander recounts his story, and seeks to explain it, in Proof of Heaven: A Neurosurgeon's Journey into the Afterlife, to be published in the US on October 23.