Abstract: This article is available in French only. The article presents some footage on three dreams of a 17 year old girl. Based on various criteria of dream interpretation, the article proposes the hypothesis that the dream would be a search for a solution and that it would have a predictive dimension. An old Talmudic observation says that a dream not interpreted is like a letter unread. The article raises a number of questions regarding the criteria of dream interpretation according to different theories.