For anyone interested in the therapeutic (or otherwise) use of ketamine, I strongly recommend the autobiography of John Lilly, the neuroscientist who developed

For anyone interested in the therapeutic (or otherwise) use of ketamine, I strongly recommend the autobiography of John Lilly, the neuroscientist who developed the sensory deprivation tank. His discussion of ketamine-aided spiritual entity discovery and dolphin communication are enlightening. https://archive.org/details/scientistnovelau00lill/page/n5/mode/2up https://archive.org/details/scientistnovelau00lill/page/n5/m...