The chiasmus is also found on the conceptual level, in whichUnamuno regards apparent contraries as freely reversible and thus identical.From early adulthood he was fascinated by the Hegelian idea of the identity ofpure Being and pure Nothingness, and that concept provides the structure underlyinga wide variety of his paradoxes and verbal conceits. In this connection,Unamuno explores concepts usually considered opposites, such as mind and bodyor spirit and matter. Olson's close readings of the texts in terms of thisstructure lead to observations on Spanish history, events in Unamuno's life,the psychological dimensions of his characters, and the authorial self that isfound within his texts.