What happens when the trip doesn't stop? Journalist and researcher Ed Prideaux tells us what happened when his acid high never subsided. Instead of people's faces and clear blue skies, he would see geometric patterns and melting features. This went on for years. But, curiously, the condition known as hallucinatory persisting perception disorder eased when he stopped smoking cannabis. It led him into advocacy work for a charity and established him as the leading voice on the topic within the psychedelic space. He recently wrote
for the BBC about what he learnt from experiencing psychedelic flashbacks. We also discuss lucid dreaming, self-inquiry meditation and Nandos.