Reisen I is the first in a series of occasional pamphlets, which refer to trains, train journeys, railway-lines, stations, station platforms, railway timetables, ticket collectors, and train compartments in the life and work of Sigmund Freud. In 1900 The Interpretation of Dreams was published, from which Kivland has drawn short extracts, edited, to a certain extent, in an attempt to retain only references to trains. She imagined that many more trains or railways had occurred in the dreams recounted therein and was disappointed that there were not more descriptions of the trains and routes, both main and branch lines, of the Staats-Eisenbahn-Gesellschaft. Still, un train peut en cacher un autre.