Before revision: German author Ernst Jünger used the term to describe Arthur Heffter in his 1970 essay on his own extensive drug experiences Annäherungen: Drogen und Rausch (literally: "Approaches: Drugs and Inebriation").
After revision: German author Ernst Jünger describes ideas related to psychonautics - in reference to Arthur Heffter - in his 1970 essay on his own extensive drug experiences Annäherungen: Drogen und Rausch (literally: "Approaches: Drugs and Inebriation").