Psychedelic drugs that feel like dying

“My body just didn’t seem relevant anymore," says Iona. "And I felt like I arrived in some consciousness soup which seemed like a different realm to the one I ordinarily inhabit – even in dreams. It just seemed like everything was rotating and swirling and spiralling. It didn’t seem like there were normal space-time proportions going on.”

Iona struggles to put into words exactly what she experienced. But towards the end of the test, she remembers an overwhelming feeling of gratitude that she had survived and a strange sense of reassurance. “I felt a sense that perhaps death isn’t the end – not that I’m religious,” she says.
https://www.bbc.co.uk/bbcthree/article/dd52796e-5935-414e-af0c-de9686d02afa