Title: The doors of perception
Subjects: English essays, Peyote, Hallucinogens, Hallucinogenic drugs, Mescaline, Visions, Fiction, short stories (single author), British and irish fiction (fictional works by one author), Peyotism, Bewusstseinserweiterung, Erkenntnistheorie, Meskalin, Visuelle Wahrnehmung