Ayahuasca

What is ayahusca? What is the method of action of psychotropic beverages made out of this plant? The universe of visions implied by the usage of teaching plants of Amazonia of Peru is susceptible to reveal us a new world of experimentation?  These are some questions to which Romuald Leterrier try to answer in this 42-minutes video conference during festival des Arts visionnaires Chimeria (2009) in Sedan. 
Based on his experience, he makes an hypotheses of a plant intelligent, a true conscience bearing a knowledge,