On the night of 29 to 30 June 1955, when I first heared a "Veleda" singing by Maria Sabina in Huautha de Jiménez, and at her invitation, I ingested the divine mushrooms, I was so stunned. It was downstairs of Cayetano Garcia's house and his wife Guadeloupe. The modest hospitality of our hosts, their children and relatives, all wearing their best clothes, the corner of María Sabina and her daughter María Apollonia, the percuctive art of María Sabina and her dancing in the darkness, agreed with the distant worlds I saw, with visual clarity never reached by the eyes in broad daylight - my body stretched in the treadmill and responding to my tattoo as if it belonged to another person : - all these effects, shared by my photographer, Allan Richardson, shaked me, even at the core of our being. My ethnomic inquiries had taken me far, but I never expected an extraterrestrial experience like that. This is a religious ceremony, I told myself at that moment and for the months that followed, I felt that it must be presented to the world in a dignified, without sensationalism, without simplification and no gross turnover, with sobriety and veracity.