Why some people experience startling and fantastic visions on the edge of death has baffled researchers for decades.
Now, an analysis of 50 near-death experiences has revealed that these encounters have an uncanny pattern.
An international team of researchers asked people who had nearly died to draw maps of the spaces they recalled from their brush with death.
Intriguingly, the geometry of those spaces seemed to be intimately linked with the colours people recalled seeing.
Despite their wildly different content and often strange visions, the researchers found that the geometry of near-death experiences fell into four broad categories.
Many participants travelled through conical spaces, including
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