Stroud, England (CNN)In March 2016, Gail Bradbrook was at an impasse.
The lifelong activist had spent decades working on an array of social justice campaigns, but few of them had gained much in the way of lasting traction. In order to bring about real, radical change, Bradbrook felt like something inside her consciousness needed to be unlocked.
So the reluctant flier traveled to the jungle-covered mountains of Costa Rica, thousands of miles away from her home in England’s leafy countryside, for a psychedelic retreat.
