The text is an autobiographical journey from Marradi through Bologna, Genova, Argentina and back to Genoa. Paralleling the actual physical journey is a spiritual and mystical voyage undertaken by Campana in search of The Longest Day of Genoa (il più lungo giorno di Genova)- his concept of an eternal moment (l'eterno presente) outside of normal space-time in which everything and everywhere exists simultaneously. This concept is not explicitly defined in the text, which is less expository or didactic than incantatory in nature. Indeed, it has been left to his critics to extrapolate much of the underlying theory in Campana's work.