It contains essays on aspects of analytical therapy, specifically the transference, abreaction, and dream analysis. He quoted Nathaniel Thornton, who compared abreaction to confession. Sigmund Freud used hypnosis to rid his patients of pathological memories through abreaction. Psychiatrist Anthony Storr claimed that primal therapy techniques have much in common with abreaction. One treatment method Hubbard drew from in developing Dianetics was abreaction therapy. Back in Vienna he developed abreaction therapy using hypnosis with Josef Breuer.