The article analyzes the philosophical heritage of L. Lipavsky - a member of OBERIU, the Leningrad literary and philosophical avant-garde group. In his cycle the «Treatises», which variously explore the specifi city of the idea of reality, author examines the connection of the experience of time and the forms of human emotions (terror, in particular). In contrast to the European intellectual tradition, L. Lipavsky places the problem of terror not in the context of psychology or ethics, but shows its aesthetic nature and experimentally forms a particular «morphology» of terror.